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AINSOF API

Search AINSOF music, hear it, cut it to time, score a video with it and get the credits that travel with it. One address answers both REST and MCP.

Base URL: https://mcp.ainsof.io/

The AINSOF API searches AINSOF music and works with its music: find cues from a brief, a name or a reference recording; get a cue's versions, stems, previews and cue sheet; choose music for a video's length; score a video; and cut a cue to length.

One endpoint serves two interfaces: REST (a JSON body with an action) and MCP (JSON-RPC, for AI assistants). Each MCP tool runs the same code as its REST action; about_ainsof is the one MCP-only tool.

All audio is clean, at 192 kbps (MP3 for tracks and edits; the audio inside a scored MP4 is AAC), for auditioning and cutting. Publishing the music needs a licence.

Start here

New to the API? The Get started guide takes you from a key to your first result.

Base URL and requests

POST https://mcp.ainsof.io/

Send a JSON body. action selects the operation; when it is omitted, search runs. Responses are JSON (Content-Type: application/json), and cross-origin requests are allowed from any origin.

A GET on the base URL is not an API call: it returns 405 with a JSON-RPC error unless the client asks for HTML.

search, soundtrack, score_video, analyze_video and fit wait up to 20 seconds for their job (similar waits up to 25 seconds and answers in one go). If it has not finished, the response is 202 with error: "still_running"; send the identical request again and it continues the same job.

Authentication

No key is required. Every action and every MCP tool can be called without a key. The video actions ask a person to sign in once on ainsof.io (see Video below).

With a key, send it as a bearer token: Authorization: Bearer <your key>. Keys start with ain_. Create and manage them at https://ainsof.io/account/api-keys after signing in with Google or email: up to 5 active keys, and up to 10 new keys a day. A key is shown once, when it is created; AINSOF does not store the key itself.

What a key changes:

  • Allowance. 1,000 successful requests per rolling 24 hours per key (the key's daily_limit), instead of 300 per network address.
  • Counting. Usage is counted per key, so several people behind one office address do not share an allowance.
  • Private work. Video renders, deliveries and edits are matched only to requests made with the same key. Anonymous identical requests share the same work.
  • Video. analyze_video, score_video and deliver_score need a signed-in person. A key created on ainsof.io counts as one; without a key, the first video request answers 401 sign_in_required with a link to sign in.

An unrecognised key is refused with 401 unauthorized; a revoked key with 403 forbidden. Any Authorization header with a value is looked up as a key; to call anonymously, omit the header.

A search with a key

Request
curl https://mcp.ainsof.io/ \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $AINSOF_API_KEY" \
  -d '{"action": "search", "brief": "dark cinematic trailer tension, pulsing synths", "top_k": 2}'
Response
{
  "ok": true,
  "catalogue_note": "Every track in these results is an original AINSOF composition. If your brief named a commercial song or artist, these are original alternatives in that spirit — not the …",
  "how_to_present": "Present each cue as: the album cover as a markdown image ![](album_cover_url), then the title in bold, then album and catalogue number, composer, publisher, BPM and lengt …",
  "results": [
    {
      "track_id": "AIN-CAT 047_007",
      "title": "Tectonic Will",
      "album_cover_url": "https://mcp.ainsof.io/cover/AIN-CAT_047.jpg?v=2",
      "album_cover_thumb_url": "https://mcp.ainsof.io/cover/AIN-CAT_047.jpg?v=2&w=220",
      "album": "Bedrock Ballistic (Raw Force Hybrid Trailer)",
      "catalogue": "AIN-CAT 047",
      "composers": [
        {
          "name": "Roman Marin",
          "society": "PRS",
          "ipi": "392438537",
          "performance_share": "50%"
        }
      ],
      "publisher": "AINSOF (Or Chausha AINSOF)",
      "style": "Hybrid Trailer",
      "also": [
        "Aggressive Hybrid Trailer",
        "Dark Cinematic Trailer"
      ],
      "feels": [
        "Intense",
        "Aggressive",
        "…"
      ],
      "length": "2:11",
      "bpm": 137,
      "description": "This aggressive hybrid trailer track, clocking in at 137.2 BPM, delivers an intense and foreboding sonic experience. Driven by powerful cinematic percussion, taiko drums, …",
      "listen_url": "https://play.ainsof.io/#AIN-CAT_047_007",
      "audio_url": "https://mcp.ainsof.io/p/AIN-CAT_047_007?raw=1",
      "also_available": "7 more versions: CUT_15, CUT_30, CUT_40, CUT_60, MUSIC_BED, NO_PERCUSSION, UNDERSCORE · 5 stems"
    },
    "…"
  ],
  "licensing": "… (see The licensing object)"
}

Limits

CallerAllowanceCounted per
Anonymous300 successful requests per rolling 24 hoursnetwork address
With a keythe key's daily_limit, 1,000 for keys created on ainsof.iokey

  • What counts: requests that succeed. Errors, refusals and 202 still_running replies do not count. MCP protocol messages (initialize, tools/list, ping, …) do not count; each tools/call counts as the action it runs.
  • Anonymous callers: opening AINSOF media links on mcp.ainsof.io (for example an audio_url, a rendered video or an edit) also counts against the address that opens them.
  • Reset: the window is rolling. Each request stops counting 24 hours after it was made; there is no fixed daily reset.
  • When exceeded: 429 with error: "rate_limited". No rate-limit headers are sent. A key's limit can be raised on request.

Other limits:

ItemLimit
search results (top_k)25 (name lookups: see search)
soundtrack options3
musical_description1000 characters
musical_styles4 labels, 80 characters each
fit seconds1 to 300
fit edits in progress2 per caller (key, or address when anonymous)
feedback text fieldstruncated to 4,000 characters
Upload slot (get_upload_link)2 hours, one upload
analyze_video, score_videovideos up to 15 minutes
similar searches600 per hour per caller, then 429 slow_down
Video sign-in links200 new links per network address per hour
Keys per account5 active; 10 created per 24 hours

Errors

Errors return ok: false and an error value, often with a message. Some also carry tell_the_user (guidance for AI assistants) and contact.

Most error values are snake_case codes. Some validation and lookup errors carry a plain sentence in error instead; these are listed with each action. Use the HTTP status together with error.

StatuserrorMeaning
202still_runningThe job is still running. Send the identical request again.
400body must be JSONThe body is not valid JSON.
400unknown action: <name>action is not recognised.
401unauthorizedThe key is not recognised.
403forbiddenThe key has been revoked.
405POST onlyWrong HTTP method.
429rate_limitedThe daily allowance is used up.
500internal errorUnexpected server error.
503engine_unavailableThe search engine, renderer or editor did not pick up the job. Nothing was done.

Action-specific errors are listed with each action.

Unrecognised key

Request
curl https://mcp.ainsof.io/ \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer ain_000000000000000000000000" \
  -d '{"action": "search", "brief": "piano"}'
Response
{
  "ok": false,
  "error": "unauthorized",
  "message": "That key is not recognised."
}

Anonymous allowance used up

Request
curl https://mcp.ainsof.io/ \
  -H "Content-Type: application/json" \
  -d '{"action": "search", "brief": "warm acoustic"}'
Response
{
  "ok": false,
  "error": "rate_limited",
  "message": "You have reached the free daily limit. It resets on a rolling 24 hours. A free key raises it to 1000 a day — create one at https://ainsof.io/account/api-keys (sign in with Google or email) — or get in touch and we will raise it further.",
  "tell_the_user": "Say plainly that the daily free limit was reached and it resets within 24 hours. Do NOT say the catalogue has nothing, do NOT say the track does not exist, and do NOT go and search the web instead. Nothing was searched.",
  "contact": "info@ainsof.io"
}

Objects

Result

One cue in a search or soundtrack answer.

track_id
string
The cue's id, e.g. AIN-CAT 031_002. Actions that take a track_id accept it with a space or an underscore (AIN-CAT 031_002 or AIN-CAT_031_002).
title
string
Cue title.
album_cover_url
string | null
Album artwork (JPEG). null when the album code has no artwork.
album_cover_thumb_url
string | null
The same artwork resized to 220 px.
album
string | null
Album name.
catalogue
string | null
Album code, e.g. AIN-CAT 031.
composers
array
Writers: name, society, ipi, performance_share.
publisher
string
Publisher name.
style
string
Main style.
also
string[]
Up to 4 related styles.
feels
string[]
Up to 5 moods.
length
string
Duration as m:ss; under 10 seconds, seconds with one decimal (e.g. 5.7s).
bpm
integer | null
Tempo, rounded.
description
string
Written description of the cue.
listen_url
string | null
Player page for the preview. null when no preview could be confirmed.
audio_url
string | null
The preview audio itself (see Links). null together with listen_url.
listen
string
A sentence explaining that no preview is available right now.
Only when listen_url is null
also_available
string | null
Other versions by name and the number of stems, e.g. 5 more versions: CUT_15, CUT_30, CUT_40, CUT_60, UNDERSCORE · 3 stems. Use track to get their links.

Credits

Returned by track and cue_sheet.

track_id
string
Cue id.
catalogue
string
Album code.
album
string
Album name.
title
string
Cue title.
isrc
string
ISRC.
bpm
number
Tempo.
key
string
Musical key.
duration_sec
number
Duration in seconds.
publisher
string
Publisher name.
composers
array
Writers: name, ipi, society, perf_share (performance share).
album_cover_url
string | null
Album artwork (JPEG).
Only in track
album_cover_thumb_url
string | null
The same artwork resized to 220 px.
Only in track

The licensing object

Attached to most answers as licensing.

status
string
preview, or licensed for keys AINSOF has flagged with an existing licence.
what_you_have
string
What the caller holds (previews for auditioning).
beyond_online
object
note and uses: uses that are agreed directly with AINSOF.
contact
string
info@ainsof.io.
how_it_works
string[]
Short statements about previews, cue sheets and support.
Response
{
  "status": "preview",
  "what_you_have": "You have full search across the AINSOF catalogue, and every track you download is a complete preview — the whole piece, start to finish, so you can cut to it and see whether it truly works. The preview is for auditioning; publication requires a separate licence.",
  "beyond_online": {
    "note": "A preview does not grant permission for publication, broadcast, advertising or other release. This connector does not sell licences or initiate a purchase; it provides discovery, auditioning and rights information.",
    "uses": [
      "Trailers and promos",
      "Broadcast television and radio",
      "Cinema and theatrical",
      "Paid advertising campaigns",
      "Games and apps",
      "Anything exclusive, or any territory you need locked"
    ]
  },
  "contact": "info@ainsof.io",
  "how_it_works": [
    "Search and audition catalogue previews without purchasing anything.",
    "Cue sheets identify the music and credits; they are not a licence.",
    "For technical support, privacy requests or questions about an existing licence, contact info@ainsof.io."
  ]
}

Music

Search by reference

POSThttps://mcp.ainsof.io/

Find AINSOF cues that sound like a reference recording, given a link or an artist and title.

RESTaction: "search"MCPsearch_by_reference

  • Same action as search, with link instead of brief. If both are sent, the search runs on link.
  • Accepted references: a YouTube, Spotify, Apple Music or Deezer link, or artist - title. SoundCloud and TikTok links are not supported; send the artist and title instead.
  • Results are ranked candidates, not verified sound-alikes; reference_match.similarity_verified is always false.
  • The first reply may be 202 still_running; send the identical request again to continue the same search.
  • A link that cannot be resolved fails with 503 search_failed. Sending the same link again will not help; send artist - title instead.

Request body application/json

actionrequired
string
search.
linkrequired
string
Reference link, or artist - title.
musical_description
string
Known style, groove and instrumentation of the reference. Adds a second, text-based candidate search whose ranking is fused with the reference match. Negatives in it are enforced as in search. Translated when written in a non-Latin script.
At most 1000 characters.
musical_styles
string[]
Known English genre labels for the reference (e.g. disco, funk). Results are restricted to cues whose style tags match at least one label.
Up to 4 labels; each 1 to 80 characters of letters, digits, spaces, &, / and -, starting with a letter or digit.
top_k
integer
Number of results.
Default: 10
Capped at 25.
Also accepted as count

Response 200

ok
boolean
true.
results
array of Result
Candidate cues, best first.
heard
string
The recording the reference resolved to, as artist — title.
When the reference was identified
reference_match.method
string
reference_only, reference_and_musical_context or reference_and_catalogue_styles.
reference_match.context_retrieval
string
not_requested, candidates_found or no_embedding_candidates.
reference_match.context_source
string
caller_supplied_not_independently_verified.
With musical_description
reference_match.musical_description
string
The description used (in English).
With musical_description
reference_match.translated_from
string
The original description, when it was translated.
When the description was translated
reference_match.reference_source
string
metadata_only or audio_or_catalogue.
reference_match.similarity_verified
boolean
Always false.
reference_match.style_matching
object
requested, unsupported_after_constraints, unavailable_in_verified_shortlist, returned, note, and matches (per cue: the requested style and the style tag it matched).
With musical_styles
reference_match.note
string
How to read the candidates.
catalogue_note, how_to_present, licensing
As in search.

Errors

StatuserrorWhen
400invalid_musical_stylesmusical_styles is not an array of up to 4 valid labels.
400invalid_musical_descriptionmusical_description is not text or is longer than 1000 characters.
503reference_context_translation_unavailableThe musical description could not be translated.
503reference_context_unavailableThe musical-context search failed.
503reference_style_catalogue_unavailableLibrary style data could not be loaded completely.
202 / 500 / 503still_running, could not queue the search, engine_unavailable, search_failedAs in search.

Reference by artist and title

Request
curl https://mcp.ainsof.io/ \
  -H "Content-Type: application/json" \
  -d '{"action": "search", "link": "Hans Zimmer - Time", "top_k": 3}'
Response
{
  "ok": true,
  "heard": "Hans Zimmer — Time",
  "reference_match": {
    "method": "reference_only",
    "context_retrieval": "not_requested",
    "reference_source": "audio_or_catalogue",
    "similarity_verified": false,
    "note": "These are ranked catalogue candidates, not verified sound-alikes. No musical description was supplied. Add the reference's known style, groove and instruments to refine the search; do not invent them."
  },
  "catalogue_note": "Every track in these results is an original AINSOF composition. If your brief named a commercial song or artist, these are original alternatives in that spirit — not the named recording, and not a cover of it.",
  "how_to_present": "Use only the AINSOF album artwork attached to this result or its album_cover_thumb_url. Never search for, generate or substitute artwork from Spotify, Apple Music or another artist. If it cannot be displayed, show the album title without an image. Present each cue as: the album cover as a markdown image ![](album_cover_url), then the title in bold, then album and catalogue number, composer, publisher, BPM and length, then the listen link as an ordinary markdown link.  The artwork reaches you twice — attached to this reply as image blocks, and as a URL on every row. Each attached cover is preceded by a line naming its album (\"Album cover — <album> · <catalogue>\"), so you always know which record a picture belongs to: show it beside the cues from that album. Covers are sent one per album, not one per cue, so several cues can share the same picture.  Interfaces differ: some render the markdown image inline, some hide remote images behind a click, some show only the attachment. Write the markdown image regardless, since it costs nothing where it does not render. But never assume the customer can see it: never let the cover carry a fact the words do not. Named in text, the album survives every client.  listen_url on a row opens the complete preview of that cue. Every cue here is a preview for auditioning; licensing is at the foot of this answer, and both are true of the whole list rather than of any one row.  also_available on a row is an INVENTORY, not a limit: \"7 more versions: CUT_15, CUT_30, CUT_40, CUT_60, UNDERSCORE, NO_CHOIR · 8 stems\" means we hold each of those named lengths and mixes of that cue, plus eight separated stems. The version names are on the row precisely so you can answer \"do you have a 30?\" from what you already have — read them and say yes, rather than calling get_track to find out. Stems are counted rather than named, because their names are long and nobody picks a cue off a stem list.  Never read a short row as a thin catalogue and never tell a customer a cue has no 30-second cut or no stems. Call get_track when you need the actual FILES — a listen link for a specific version or stem, or the full credits — not to discover which versions exist, because that is already written above.  ⚠️ Do NOT build a custom audio player, HTML widget or iframe for these results. A generated player runs under a content policy that blocks our audio host, so the controls appear and nothing plays — which looks broken to the customer and is worse than a plain link that works. A markdown link plays. Use it.  Never mention scores, rankings, identifiers, tokens, link expiry, iframes, content policies or anything about how the search works. If something cannot be done, say plainly what failed and offer to try again.  If the brief named a commercial song or artist, open with the plain fact that AINSOF is an original catalogue and these are original alternatives in that spirit — never present a result as the named recording or a cover of it.",
  "results": [
    {
      "track_id": "AIN-CAT 041_004",
      "title": "Prime Ascension",
      "album_cover_url": "https://mcp.ainsof.io/cover/AIN-CAT_041.jpg?v=2",
      "album_cover_thumb_url": "https://mcp.ainsof.io/cover/AIN-CAT_041.jpg?v=2&w=220",
      "album": "Heroic Dominion (Orchestral Kinetic Heroics)",
      "catalogue": "AIN-CAT 041",
      "composers": [
        {
          "name": "Alexander Okunev",
          "society": "PRS",
          "ipi": "499092207",
          "performance_share": "50%"
        }
      ],
      "publisher": "AINSOF (Or Chausha AINSOF)",
      "style": "Cinematic Hybrid Orchestral",
      "also": [
        "Superhero Score",
        "Trailer Music",
        "Action Adventure Score"
      ],
      "feels": [
        "Heroic",
        "Triumphant",
        "Empowering"
      ],
      "length": "2:39",
      "bpm": 125,
      "description": "This cinematic hybrid orchestral score, set at a driving 125 BPM in F minor, embodies a noble hero's journey from challenge to ultimate triumph. Featuring expressive piano, soaring legato strings, proud brass melodies, and an epic choir, it builds with powerful percussion and taiko to a grand, triumphant climax at 148 seconds. The track's intense and uplifting energy, punctuated by impactful hits, braams, and whooshes, perfectly underscores moments of heroic transformation and ascending power. With its blend of orchestral and synth elements, including synth bass and synth brass, it creates a modern, monumental soundscape. This is the sound of victory and determination, designed to inspire and elevate. It is ideal for blockbuster trailers and climactic scenes, creating a truly epic and empowering atmosphere.",
      "listen_url": "https://play.ainsof.io/#AIN-CAT_041_004",
      "audio_url": "https://mcp.ainsof.io/p/AIN-CAT_041_004?raw=1",
      "also_available": "7 more versions: CUT_15, CUT_30, CUT_40, CUT_60, NO_CHOIR, NO_PERCUSSION, UNDERSCORE · 14 stems"
    },
    {
      "track_id": "AIN-CAT 005_008",
      "title": "Battleforged Awakening",
      "album_cover_url": "https://mcp.ainsof.io/cover/AIN-CAT_005.jpg?v=2",
      "album_cover_thumb_url": "https://mcp.ainsof.io/cover/AIN-CAT_005.jpg?v=2&w=220",
      "album": "Veil Of Wonders (Symphonic Mystery Adventure)",
      "catalogue": "AIN-CAT 005",
      "composers": [
        {
          "name": "Alexander Okunev",
          "society": "PRS",
          "ipi": "499092207",
          "performance_share": "50%"
        }
      ],
      "publisher": "AINSOF (Or Chausha AINSOF)",
      "style": "Epic Cinematic Fantasy Orchestral",
      "also": [
        "Orchestral Adventure",
        "Fantasy Score",
        "Trailer Music"
      ],
      "feels": [
        "Epic",
        "Magical",
        "Adventurous"
      ],
      "length": "3:00",
      "bpm": 131,
      "description": "This epic cinematic orchestral track, set in E minor and surging at 130.81 BPM, conjures a world where ancient mysteries awaken under a moon's ethereal glow, leading to a powerful, battle-forged destiny. Grand choirs, soaring strings, and powerful brass combine with the percussive force of Taiko drums and timpani, alongside the exotic textures of Duduk and Bagpipes, creating an intense and adventurous soundscape. The track's very high energy and intense mood build steadily towards a dramatic emotional peak at 177 seconds, culminating in a powerful, conclusive statement at 178 seconds. With its blend of traditional and hybrid orchestral elements, including electric guitar, it evokes a sense of both magic and impending conflict. This instrumental piece, featuring prominent choir and wordless vocals, is ideal for fantasy film trailers, video game scores, or any dramatic content requiring a sense of heroic struggle and magical discovery.",
      "listen_url": "https://play.ainsof.io/#AIN-CAT_005_008",
      "audio_url": "https://mcp.ainsof.io/p/AIN-CAT_005_008?raw=1",
      "also_available": "8 more versions: BRASS_STRINGS, CUT_15, CUT_30, CUT_40, CUT_60, NO_CHOIR, NO_DRUM_PERCUSSION, UNDERSCORE · 5 stems"
    }
  ],
  "licensing": {
    "status": "preview",
    "what_you_have": "You have full search across the AINSOF catalogue, and every track you download is a complete preview — the whole piece, start to finish, so you can cut to it and see whether it truly works. The preview is for auditioning; publication requires a separate licence.",
    "beyond_online": {
      "note": "A preview does not grant permission for publication, broadcast, advertising or other release. This connector does not sell licences or initiate a purchase; it provides discovery, auditioning and rights information.",
      "uses": [
        "Trailers and promos",
        "Broadcast television and radio",
        "Cinema and theatrical"
      ]
    },
    "contact": "info@ainsof.io",
    "how_it_works": [
      "Search and audition catalogue previews without purchasing anything.",
      "Cue sheets identify the music and credits; they are not a licence.",
      "For technical support, privacy requests or questions about an existing licence, contact info@ainsof.io."
    ]
  }
}

Find similar

POSThttps://mcp.ainsof.io/

Find AINSOF cues that sound like an AINSOF cue: the whole cue, or a passage of it that you mark.

RESTaction: "similar"MCPfind_similar

  • Send from and to to mark a passage (5 to 60 seconds long), for example the hook or the bar before the drop. Leave them out to compare whole cues.
  • Each result carries similarity and, for a passage, matching_passage: the part of that cue that sounds closest to the one you marked.
  • A passage that runs past the end of the cue is matched from its last seconds.
  • The cue you start from is never returned in its own results.
  • For a song by another artist (a YouTube, Spotify, Apple Music or Deezer link) use search with link instead.

Request body application/json

actionrequired
string
similar.
track_idrequired
string
Cue id or title, e.g. AIN-CAT 030_001 or Along The River.
from
number
Start of the marked passage, in seconds from the start of the cue.
0 or more.
Also accepted as start
to
number
End of the marked passage, in seconds.
5 to 60 seconds after from.
Also accepted as end
top_k
integer
Number of results.
Default: 10
1 to 25.
Also accepted as count

Response 200

ok
boolean
true.
reference
object
The cue you started from: track_id, title, album_code, and passage (from, to, label) or "whole cue".
how_matched
string
How the comparison was made.
results
array of Result
Matching cues, best match first (the AINSOF ranking). Each also has similarity (0 to 1) and, for a passage, matching_passage (from, to, label).
catalogue_note, how_to_present, licensing
As in search.

Errors

StatuserrorWhen
400track_id is requiredNo track_id was sent.
400invalid_passagefrom/to are missing a value, negative, shorter than 5 seconds or longer than 60.
400invalid_requesttrack_id is not a cue id (for example an unknown title or an album code); message explains.
429slow_downToo many similarity searches in a short time. Try again shortly.
503similar_failedThe comparison could not run, the cue is not yet indexed for sound matching, or no cue has that id. This does not mean nothing is similar; try again later.

Tracks like a marked passage

Request
curl https://mcp.ainsof.io/ \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $AINSOF_API_KEY" \
  -d '{"action": "similar", "track_id": "AIN-CAT 030_001", "from": 107, "to": 122, "top_k": 3}'
Response
{
  "ok": true,
  "reference": {
    "track_id": "AIN-CAT 030_001",
    "title": "Along The River",
    "album_code": "AIN-CAT 030",
    "passage": {
      "from": 107,
      "to": 122,
      "label": "1:47–2:02"
    }
  },
  "how_matched": "Compared by sound against every AINSOF cue, window by window; matching_passage is the part of each result that sounds closest to the marked passage.",
  "results": [
    {
      "track_id": "AIN-CAT 024_002",
      "title": "Spring In a Bottle",
      "album": "Heartwood (Live Acoustic Embrace)",
      "catalogue": "AIN-CAT 024",
      "listen_url": "https://play.ainsof.io/#AIN-CAT_024_002",
      "…": "…",
      "similarity": 0.9669,
      "matching_passage": {
        "from": 15,
        "to": 25,
        "label": "0:15–0:25"
      }
    },
    {
      "track_id": "AIN-CAT 030_002",
      "title": "Desert Journey",
      "…": "…",
      "similarity": 0.9627,
      "matching_passage": {
        "from": 80,
        "to": 90,
        "label": "1:20–1:30"
      }
    },
    "…"
  ],
  "licensing": "… (see The licensing object)"
}

Get a cue

POSThttps://mcp.ainsof.io/

Return one cue in full: credits, description, every version and every stem, each with its own preview link.

RESTaction: "track"MCPget_track

  • track_id accepts the id with a space or an underscore (AIN-CAT 031_002, AIN-CAT_031_002) or the cue's title.
  • An album name or album code is not a cue: the 404 message lists the album's cue ids instead.
  • Composer entries in track, cue_sheet and fit use perf_share; result rows from search and soundtrack use performance_share.

Request body application/json

actionrequired
string
track.
track_idrequired
string
Cue id or title.

Response 200

ok
boolean
true.
credits
object | null
The Credits object plus album_cover_url and album_cover_thumb_url. null if the cue has no credits record.
track
object
The Result fields (without also_available) plus the fields below.
track.versions
array
Every version except the full mix: version, label, length, listen_url.
track.stems
array
Every stem: stem, label, listen_url. Request a stem from preview as STEM_<stem>.
track.listen
string
Sentence describing the preview links.
track.licence
string
Preview for auditioning · no publication rights granted.
track.music_key, vibe, scenes, use_cases, not_for
string / string[]
Key, character, suitable scenes and uses, and uses to avoid.
cue_sheet_available
boolean
Always true.
licensing
object
See The licensing object.

Errors

StatuserrorWhen
400track_id is requiredtrack_id missing.
404(a sentence)Nothing matched the id or title. The sentence is in error; for an album or composer name it says so and how to proceed.

Get a cue by id

Request
curl https://mcp.ainsof.io/ \
  -H "Content-Type: application/json" \
  -d '{"action": "track", "track_id": "AIN-CAT 031_002"}'
Response
{
  "ok": true,
  "credits": {
    "track_id": "AIN-CAT 031_002",
    "catalogue": "AIN-CAT 031",
    "album": "Shining Ahead (Corporate Advertising)",
    "title": "Shine On Today",
    "isrc": "BG-A47-26-02477",
    "bpm": 84,
    "key": "D major",
    "duration_sec": 151,
    "publisher": "AINSOF (Or Chausha AINSOF)",
    "composers": [
      {
        "ipi": "687184598",
        "name": "Alon Peretz",
        "society": "PRS",
        "perf_share": "50%"
      }
    ],
    "album_cover_url": "https://mcp.ainsof.io/cover/AIN-CAT_031.jpg?v=2",
    "album_cover_thumb_url": "https://mcp.ainsof.io/cover/AIN-CAT_031.jpg?v=2&w=220"
  },
  "track": {
    "track_id": "AIN-CAT 031_002",
    "title": "Shine On Today",
    "album_cover_url": "https://mcp.ainsof.io/cover/AIN-CAT_031.jpg?v=2",
    "album_cover_thumb_url": "https://mcp.ainsof.io/cover/AIN-CAT_031.jpg?v=2&w=220",
    "album": "Shining Ahead (Corporate Advertising)",
    "catalogue": "AIN-CAT 031",
    "composers": [
      {
        "ipi": "687184598",
        "name": "Alon Peretz",
        "society": "PRS",
        "perf_share": "50%"
      }
    ],
    "publisher": "AINSOF (Or Chausha AINSOF)",
    "style": "Advertising Pop",
    "also": [
      "Acoustic Pop",
      "Folk Pop",
      "Indie Pop"
    ],
    "feels": [
      "Uplifting",
      "Optimistic",
      "Carefree"
    ],
    "length": "2:31",
    "bpm": 84,
    "description": "This uplifting and sunny D major track, flowing at 83.96 BPM, radiates lighthearted optimism and positive energy. Featuring a bright blend of acoustic guitar, keys, bass, drums, percussion, and playful whistles, it creates an effortlessly cheerful and organic soundscape. The addition of tuba, synth, FX, and subtle vocals adds texture to its feelgood, indie pop character. Ideal for capturing moments of joy and carefree adventure, this track is perfect for a wide range of visual content. It evokes scenes of bright mornings and happy family gatherings, making it a versatile choice for positive storytelling.",
    "versions": [
      {
        "version": "CUT_15",
        "label": "15s",
        "length": "0:15",
        "listen_url": "https://play.ainsof.io/#AIN-CAT_031_002/CUT_15"
      },
      {
        "version": "CUT_30",
        "label": "30s",
        "length": "0:30",
        "listen_url": "https://play.ainsof.io/#AIN-CAT_031_002/CUT_30"
      },
      {
        "version": "CUT_40",
        "label": "40s",
        "length": "0:40",
        "listen_url": "https://play.ainsof.io/#AIN-CAT_031_002/CUT_40"
      }
    ],
    "stems": [
      {
        "stem": "ACC",
        "label": "Acc",
        "listen_url": "https://play.ainsof.io/#AIN-CAT_031_002/STEM_ACC"
      },
      {
        "stem": "BASS",
        "label": "Bass",
        "listen_url": "https://play.ainsof.io/#AIN-CAT_031_002/STEM_BASS"
      },
      {
        "stem": "DRUMS",
        "label": "Drums",
        "listen_url": "https://play.ainsof.io/#AIN-CAT_031_002/STEM_DRUMS"
      }
    ],
    "listen_url": "https://play.ainsof.io/#AIN-CAT_031_002",
    "audio_url": "https://mcp.ainsof.io/p/AIN-CAT_031_002?raw=1",
    "listen": "Open listen_url to hear the complete preview. Every entry under versions and stems carries its own listen_url — cutdowns, instrumentals and individual stems all play the same way.",
    "licence": "Preview for auditioning · no publication rights granted",
    "music_key": "D major",
    "vibe": "Bright, organic, and irresistibly cheerful, evoking a sense of carefree optimism.",
    "scenes": [
      "Sun-drenched morning routines",
      "Family road trips",
      "DIY project montages"
    ],
    "use_cases": [
      "Upbeat TV commercials",
      "Lifestyle brand campaigns",
      "Social media content for positive messaging"
    ],
    "not_for": [
      "Dramatic or suspenseful narratives",
      "Somber or melancholic storytelling",
      "High-stakes action sequences"
    ]
  },
  "cue_sheet_available": true,
  "licensing": {
    "status": "preview",
    "what_you_have": "You have full search across the AINSOF catalogue, and every track you download is a complete preview — the whole piece, start to finish, so you can cut to it and see whether it truly works. The preview is for auditioning; publication requires a separate licence.",
    "beyond_online": {
      "note": "A preview does not grant permission for publication, broadcast, advertising or other release. This connector does not sell licences or initiate a purchase; it provides discovery, auditioning and rights information.",
      "uses": [
        "Trailers and promos",
        "Broadcast television and radio",
        "Cinema and theatrical"
      ]
    },
    "contact": "info@ainsof.io",
    "how_it_works": [
      "Search and audition catalogue previews without purchasing anything.",
      "Cue sheets identify the music and credits; they are not a licence.",
      "For technical support, privacy requests or questions about an existing licence, contact info@ainsof.io."
    ]
  }
}

Preview links

POSThttps://mcp.ainsof.io/

Return the player link and audio link for one version or stem of a cue.

RESTaction: "preview"MCPlisten_link

  • version takes any version name from track (MAIN, CUT_30, UNDERSCORE, …) or a stem as STEM_<name>, in any case.
  • audio_url is the clean MP3 at 192 kbps (watermarked: false).

Request body application/json

actionrequired
string
preview.
track_idrequired
string
Cue id or title.
version
string
Version or STEM_<name>. Case-insensitive.
Default: MAIN

Response 200

ok
boolean
true.
track_id
string
The resolved cue id.
version
string
The version, upper-cased.
catalogue
string
Album code.
album_cover_thumb_url
string
Artwork at 220 px.
listen_url
string
Player page for this version.
audio_url
string
The audio for this version (see Links).
watermarked
boolean
false: the audio is the clean MP3 at 192 kbps.
licensing
object
See The licensing object.

Errors

StatuserrorWhen
400track_id is requiredtrack_id missing.
404(a sentence)The id or title does not resolve to a cue.
404not_availableNo preview is stored for that cue and version.

A 15-second cut

Request
curl https://mcp.ainsof.io/ \
  -H "Content-Type: application/json" \
  -d '{"action": "preview", "track_id": "AIN-CAT_031_002", "version": "cut_15"}'
Response
{
  "ok": true,
  "track_id": "AIN-CAT 031_002",
  "version": "CUT_15",
  "catalogue": "AIN-CAT 031",
  "album_cover_thumb_url": "https://mcp.ainsof.io/cover/AIN-CAT_031.jpg?v=2&w=220",
  "listen_url": "https://play.ainsof.io/#AIN-CAT_031_002/CUT_15",
  "audio_url": "https://mcp.ainsof.io/p/AIN-CAT_031_002/CUT_15?raw=1",
  "watermarked": false,
  "licensing": {
    "status": "preview",
    "what_you_have": "You have full search across the AINSOF catalogue, and every track you download is a complete preview — the whole piece, start to finish, so you can cut to it and see whether it truly works. The preview is for auditioning; publication requires a separate licence.",
    "beyond_online": {
      "note": "A preview does not grant permission for publication, broadcast, advertising or other release. This connector does not sell licences or initiate a purchase; it provides discovery, auditioning and rights information.",
      "uses": [
        "Trailers and promos",
        "Broadcast television and radio",
        "Cinema and theatrical"
      ]
    },
    "contact": "info@ainsof.io",
    "how_it_works": [
      "Search and audition catalogue previews without purchasing anything.",
      "Cue sheets identify the music and credits; they are not a licence.",
      "For technical support, privacy requests or questions about an existing licence, contact info@ainsof.io."
    ]
  }
}

A stem, cue named by title

Request
curl https://mcp.ainsof.io/ \
  -H "Content-Type: application/json" \
  -d '{"action": "preview", "track_id": "Shine On Today", "version": "STEM_BASS"}'
Response
{
  "ok": true,
  "track_id": "AIN-CAT 031_002",
  "version": "STEM_BASS",
  "catalogue": "AIN-CAT 031",
  "album_cover_thumb_url": "https://mcp.ainsof.io/cover/AIN-CAT_031.jpg?v=2&w=220",
  "listen_url": "https://play.ainsof.io/#AIN-CAT_031_002/STEM_BASS",
  "audio_url": "https://mcp.ainsof.io/p/AIN-CAT_031_002/STEM_BASS?raw=1",
  "watermarked": false,
  "licensing": {
    "status": "preview",
    "what_you_have": "You have full search across the AINSOF catalogue, and every track you download is a complete preview — the whole piece, start to finish, so you can cut to it and see whether it truly works. The preview is for auditioning; publication requires a separate licence.",
    "beyond_online": {
      "note": "A preview does not grant permission for publication, broadcast, advertising or other release. This connector does not sell licences or initiate a purchase; it provides discovery, auditioning and rights information.",
      "uses": [
        "Trailers and promos",
        "Broadcast television and radio",
        "Cinema and theatrical"
      ]
    },
    "contact": "info@ainsof.io",
    "how_it_works": [
      "Search and audition catalogue previews without purchasing anything.",
      "Cue sheets identify the music and credits; they are not a licence.",
      "For technical support, privacy requests or questions about an existing licence, contact info@ainsof.io."
    ]
  }
}

Cue sheet

POSThttps://mcp.ainsof.io/

Return a cue's credits and a plain-text cue sheet.

RESTaction: "cue_sheet"MCPcue_sheet

  • The cue sheet lists the performance share only.
  • This response has no licensing block.

Request body application/json

actionrequired
string
cue_sheet.
track_idrequired
string
Cue id or title.

Response 200

ok
boolean
true.
track_id
string
The resolved cue id.
credits
object
The Credits object.
cue_sheet
string
Plain-text cue sheet: title, album, library, ISRC, duration, tempo and key, publisher, and each writer with IPI, society and performance share.
note
string
Short usage note.

Errors

StatuserrorWhen
400track_id is requiredtrack_id missing.
404(a sentence)Nothing matched the id or title.

Cue sheet

Request
curl https://mcp.ainsof.io/ \
  -H "Content-Type: application/json" \
  -d '{"action": "cue_sheet", "track_id": "AIN-CAT 031_002"}'
Response
{
  "ok": true,
  "track_id": "AIN-CAT 031_002",
  "credits": {
    "track_id": "AIN-CAT 031_002",
    "catalogue": "AIN-CAT 031",
    "album": "Shining Ahead (Corporate Advertising)",
    "title": "Shine On Today",
    "isrc": "BG-A47-26-02477",
    "bpm": 84,
    "key": "D major",
    "duration_sec": 151,
    "publisher": "AINSOF (Or Chausha AINSOF)",
    "composers": [
      {
        "ipi": "687184598",
        "name": "Alon Peretz",
        "society": "PRS",
        "perf_share": "50%"
      }
    ]
  },
  "cue_sheet": "AINSOF MUSIC — CUE SHEET\n\nTitle            Shine On Today\nAlbum            Shining Ahead (Corporate Advertising)\nCatalogue        AIN-CAT 031\nISRC             BG-A47-26-02477\nDuration         151 sec\nTempo / Key      84 BPM  D major\n\nPublisher        AINSOF (Or Chausha AINSOF)  (100%)\n\nWriters\n  Alon Peretz\n      IPI 687184598   PRS   performance 50%\n\nMaster and publishing controlled by AINSOF.\nLicensing information: ainsof.io",
  "note": "Save this as a .txt or paste it into your delivery paperwork. AINSOF controls both master and publishing, so these figures are ours to state."
}

Video

Music for a video

POSThttps://mcp.ainsof.io/

Return up to three cues for a video of a given length, each with the version to use.

RESTaction: "soundtrack"MCPfind_soundtrack

  • The video's description, product, scenes, edit pace and narration are turned into a musical brief; video.read_as shows the brief that was searched.
  • Options that can be heard now come first; among them, options that need no edit come first.
  • When a stock cut is chosen and its preview is confirmed, the option plays that cut: listen_url and audio_url point at it, preview_version names it and full_mix_listen_url keeps the full mix.

Request body application/json

actionrequired
string
soundtrack.
duration_secrequired
number
Video length in seconds.
Greater than 0.
Also accepted as video_seconds
description
string
What the video shows, in musical terms, in English. A description written mostly in a non-Latin script is refused (translate_first).
product
string
What the video is for.
scenes
string[]
Scene descriptions, added to the brief. REST only; not in the MCP tool schema.
cuts_per_min
number
Edit pace. At 30 or more, the brief asks for driving, high-energy music.
has_narration
boolean
true if someone speaks over the video; the brief then asks for underscore.

Response 200

ok
boolean
true.
video
object
duration_sec as sent, and read_as: the brief that was searched.
options
array
Up to 3 Result rows, each with the fields below.
options[].for_your_video
object
use, <n>s cut, custom <n>s cut or full mix preview; needs_edit, whether the audio must still be cut or trimmed to the video; why, one sentence; trim_from_sec, seconds to trim from the end of the chosen cut, when applicable.
options[].versions
array
The chosen stock cut (version, label, length, listen_url).
When a stock cut is used
options[].preview_version
string
The version listen_url and audio_url play.
When the chosen cut's preview is confirmed
options[].full_mix_listen_url
string
Player page for the full mix.
When the chosen cut's preview is confirmed
catalogue_note, licensing
As in search.

Errors

StatuserrorWhen
400duration_sec is required — the video length is what makes this different from a searchduration_sec missing, zero or negative.
400translate_firstdescription is not in English. Nothing was searched.
500could not queue the searchThe search job could not be created.
202still_runningSend the identical request again.
503engine_unavailableThe search engine did not pick up the job.
503search_failedThe search could not run.

A 30-second product video

Request
curl https://mcp.ainsof.io/ \
  -H "Content-Type: application/json" \
  -d '{"action": "soundtrack", "duration_sec": 30, "description": "upbeat modern tech product launch, confident and bright", "cuts_per_min": 20}'
Response
{
  "ok": true,
  "video": {
    "duration_sec": 30,
    "read_as": "Instrumental music that sounds like upbeat modern tech product launch, confident and bright, instrumental."
  },
  "catalogue_note": "Every track in these results is an original AINSOF composition. If your brief named a commercial song or artist, these are original alternatives in that spirit — not the named recording, and not a cover of it.",
  "options": [
    {
      "track_id": "AIN-CAT 031_006",
      "title": "Joy in Motion",
      "album_cover_url": "https://mcp.ainsof.io/cover/AIN-CAT_031.jpg?v=2",
      "album_cover_thumb_url": "https://mcp.ainsof.io/cover/AIN-CAT_031.jpg?v=2&w=220",
      "album": "Shining Ahead (Corporate Advertising)",
      "catalogue": "AIN-CAT 031",
      "composers": [
        {
          "name": "Alon Peretz",
          "society": "PRS",
          "ipi": "687184598",
          "performance_share": "50%"
        }
      ],
      "publisher": "AINSOF (Or Chausha AINSOF)",
      "style": "Uplifting Acoustic Pop",
      "also": [
        "Indie Pop",
        "Folk Pop",
        "Acoustic Pop"
      ],
      "feels": [
        "Happy",
        "Uplifting",
        "Playful"
      ],
      "length": "0:30",
      "bpm": 156,
      "description": "This energetic and uplifting instrumental track, set in G major at a brisk 156.25 BPM, radiates pure joy and optimism. Driven by a lively blend of acoustic guitar, bass, drums, and keys, it creates a bright and feel-good atmosphere. The track builds to an emotional peak at 133 seconds before concluding at 134 seconds, making it ideal for dynamic edits and montages. Its playful and hopeful character, enhanced by subtle strings and percussion, evokes a sense of carefree adventure and positive energy. Perfect for conveying warmth and inspiration, it avoids any hint of melancholy or tension, maintaining a consistently cheerful mood throughout its 136-second duration.",
      "versions": [
        {
          "version": "CUT_30",
          "label": "30s",
          "length": "0:30",
          "listen_url": "https://play.ainsof.io/#AIN-CAT_031_006/CUT_30"
        }
      ],
      "listen_url": "https://play.ainsof.io/#AIN-CAT_031_006/CUT_30",
      "audio_url": "https://mcp.ainsof.io/p/AIN-CAT_031_006/CUT_30?raw=1",
      "for_your_video": {
        "use": "30s cut",
        "needs_edit": false,
        "why": "Exactly 30s — drops straight onto a 30s edit."
      },
      "full_mix_listen_url": "https://play.ainsof.io/#AIN-CAT_031_006",
      "preview_version": "CUT_30",
      "also_available": "5 more versions: CUT_15, CUT_40, CUT_60, NO_MELODY, NO_PERCUSSION · 9 stems"
    },
    {
      "track_id": "AIN-CAT 042_003",
      "title": "Structured Light",
      "album_cover_url": "https://mcp.ainsof.io/cover/AIN-CAT_042.jpg?v=2",
      "album_cover_thumb_url": "https://mcp.ainsof.io/cover/AIN-CAT_042.jpg?v=2&w=220",
      "album": "Light in Motion (Corporate Inspiration)",
      "catalogue": "AIN-CAT 042",
      "composers": [
        {
          "name": "Elram Bokser",
          "society": "PRS",
          "ipi": "856013446",
          "performance_share": "50%"
        }
      ],
      "publisher": "AINSOF (Or Chausha AINSOF)",
      "style": "Inspirational Corporate Pop",
      "also": [
        "Uplifting Pop",
        "Motivational Corporate",
        "Smooth Dance Pop"
      ],
      "feels": [
        "Inspiring",
        "Uplifting",
        "Optimistic"
      ],
      "length": "0:30",
      "bpm": 141,
      "description": "A bright and uplifting track, 'Structured Light' delivers smooth, structured inspiration with harmonic clarity and a steady, motivational pulse at 140.62 BPM in D major. Featuring a blend of Piano, Acoustic Guitars, Organ, Acoustic Drums, and Vocals, it creates a confident and hopeful atmosphere. The high-energy arrangement builds towards an emotional peak at 124 seconds, making it ideal for conveying progress and optimism. This piece is perfectly suited for explainer videos, technology showcases, and corporate content, providing a positive and forward-looking backdrop for any project.",
      "versions": [
        {
          "version": "CUT_30",
          "label": "30s",
          "length": "0:30",
          "listen_url": "https://play.ainsof.io/#AIN-CAT_042_003/CUT_30"
        }
      ],
      "listen_url": "https://play.ainsof.io/#AIN-CAT_042_003/CUT_30",
      "audio_url": "https://mcp.ainsof.io/p/AIN-CAT_042_003/CUT_30?raw=1",
      "for_your_video": {
        "use": "30s cut",
        "needs_edit": false,
        "why": "Exactly 30s — drops straight onto a 30s edit."
      },
      "full_mix_listen_url": "https://play.ainsof.io/#AIN-CAT_042_003",
      "preview_version": "CUT_30",
      "also_available": "6 more versions: CUT_15, CUT_40, CUT_60, NO_MELODY, NO_PERCUSSION, NO_VOCAL · 13 stems"
    }
  ],
  "licensing": {
    "status": "preview",
    "what_you_have": "You have full search across the AINSOF catalogue, and every track you download is a complete preview — the whole piece, start to finish, so you can cut to it and see whether it truly works. The preview is for auditioning; publication requires a separate licence.",
    "beyond_online": {
      "note": "A preview does not grant permission for publication, broadcast, advertising or other release. This connector does not sell licences or initiate a purchase; it provides discovery, auditioning and rights information.",
      "uses": [
        "Trailers and promos",
        "Broadcast television and radio",
        "Cinema and theatrical"
      ]
    },
    "contact": "info@ainsof.io",
    "how_it_works": [
      "Search and audition catalogue previews without purchasing anything.",
      "Cue sheets identify the music and credits; they are not a licence.",
      "For technical support, privacy requests or questions about an existing licence, contact info@ainsof.io."
    ]
  }
}

Score a video

POSThttps://mcp.ainsof.io/

Mix AINSOF music onto a video and return the rendered MP4 .

RESTaction: "score_video"MCPscore_my_video

  • Before AINSOF works with a video, a person signs in once on ainsof.io (Google or email). With a key created on ainsof.io this has already happened. Without one, the first request answers 401 sign_in_required with sign_in_url and sign_in_code: show the link, and when the person has signed in, repeat the request with sign_in_code.
  • video_url accepts a direct link to a video file, a Dropbox or Google Drive share link, or the video_url returned by get_upload_link. YouTube, Vimeo, Dailymotion and Twitch pages are not supported.
  • brief, track_id and sections are all optional: leave them out and AINSOF watches the film first and chooses the music for what it shows and how it feels (returned as film).
  • Section and silence boundaries are moved onto the video's measured cuts.
  • An identical request made within 15 minutes returns the same render rather than starting another. Requests made with a key are only matched to that key's renders.
  • Renders usually take longer than one request waits: expect 202 still_running, and repeat the same request unchanged. That reply includes delivery_request with the arguments to repeat (add your sign_in_code if you signed in without a key).
  • Watching the result is free. Downloading the file opens ainsof.io, which asks for a quick sign-in (Google or email) first.
  • Videos up to 15 minutes.

Request body application/json

actionrequired
string
score_video.
video_urlrequired
string
The video (see above).
Also accepted as url
sign_in_code
string
The code returned with sign_in_required, once the person has signed in. Pass the same code to every video action; it stays valid for 30 days. Not needed with a key created on ainsof.io.
brief
string
The music wanted, in English. Leave it out and AINSOF reads the film first and chooses.
track_id
string
Use this exact cue instead of choosing one.
version
string
Force a version, e.g. CUT_30. Upper-cased.
music_offset_db
number
Music level relative to the video's own audio, in dB. Negative is quieter; 0 is level. When omitted, the renderer's default applies.
silences
array
Music-free moments: objects with at (seconds, required) and for (duration in seconds, default 1).
sections
array
Timed acts, each scored separately: from and to (seconds, required), plus brief (English), track_id, version or stems (an array of stem names from that cue; the schema asks for track_id with it). Every section needs a brief, track_id or stems.
user_request
string
Optional. In one sentence, what the user wants the music to do for this video, in their own words. Kept for 30 days to review how well the music fit, then deleted.
Longer text is cut to 500 characters.
project_type
string
Optional. What kind of project the video is. Kept as anonymous usage statistics. Other values are stored as other.
Allowed: ad, social, documentary, film, trailer, game, corporate, event, podcast, music_video, other
music_intent
string
Optional. The music the user wants, e.g. tense build, minimal, no vocals. Kept as anonymous usage statistics.
At most 8 English words (longer text is cut to 8), no names.

Response 200

ok
boolean
true.
video_url
string
Watch page for the render (see Links).
delivery_request
object
{"tool": "deliver_score", "arguments": {…}}: the public arguments to send to deliver_score.
download_url
string
Download page for the MP4: https://mcp.ainsof.io/v/<id>/download, which opens ainsof.io and asks for a sign-in before the file downloads.
storage_signature_valid_for_hours
number
1.
ainsof_link_availability
string
How long the AINSOF link keeps working.
format
string
mp4.
used
object
For a single cue: track_id, title, album, version, bpm, style, why.
For single-cue scores
cues
array
The cue (or one entry per section) used in the render.
mix
object
music_sits_db_under_your_audio and how_to_change.
video
object
duration_sec, cut_count, shot_count, average_shot_sec, cuts_per_min.
music_stops
array
Silences as rendered.
sections
array
Sections as rendered.
also_considered
array | string
Runner-up cues; for sectioned scores, a pointer to the per-section lists in cues.
how_to_revise
string
How to request a change.
note
string
States that the music is a preview for auditioning.
licensing
object
See The licensing object.
film
object
What AINSOF read in the video and the music it chose for it, when no brief was given.
When no brief was given and the film was read
download_needs
string
Says watching is free and downloading asks for a quick sign-in on ainsof.io (Google or email).
sync
object
How the music lines up with the picture: the cuts it hit and how it ends.
When the cuts could be matched
video.cut_times_sec, scenes, cut_source
Measured cut times, the scenes found, and where the cuts came from.

Errors

StatuserrorWhen
401sign_in_requiredNo signed-in person yet (only without a key created on ainsof.io). The answer carries sign_in_url (a page on ainsof.io where the person signs in with Google or email), sign_in_code, message, tell_the_user (what to say) and next (what to do after). Repeat the same request with sign_in_code once the person has signed in. Sent before they finish, it answers the same way with the same code; an unknown or expired code gets a new one, with a note. A code works for 30 days from when it was issued.
400video_url is requiredvideo_url missing.
400section_needs_musicA section has no brief, track_id or stems.
400translate_firstbrief (without track_id) or a section brief is not in English.
410upload_expiredThe uploaded video is no longer available; request a new upload link.
500could not queue the renderThe render job could not be created.
202still_runningStill rendering. Repeat the identical request; delivery_request is included.
503engine_unavailableThe renderer did not pick up the job. Nothing was rendered.
422video_failedThe video could not be processed; message gives the reason.
500video_failedThe render finished without a file, or its link could not be created.
429slow_downMore than 200 new sign-in links from one network address in an hour. Try again in a few minutes.
503try_againThe sign-in could not be checked just now. Nothing was done; try again.

Score a video from a brief

Request
curl https://mcp.ainsof.io/ \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $AINSOF_API_KEY" \
  -d '{"action": "score_video", "video_url": "https://example.com/spot.mp4", "brief": "warm acoustic, hopeful"}'
Response
{
  "ok": true,
  "video_url": "https://mcp.ainsof.io/v/<render-id>",
  "delivery_request": {
    "tool": "deliver_score",
    "arguments": {
      "video_url": "https://example.com/spot.mp4",
      "brief": "warm acoustic, hopeful"
    }
  },
  "download_url": "https://mcp.ainsof.io/v/<render-id>/download",
  "storage_signature_valid_for_hours": 1,
  "ainsof_link_availability": "The AINSOF link creates a new temporary storage signature whenever it is opened and remains available until the render is deleted on its seven-day schedule.",
  "format": "mp4",
  "used": {
    "track_id": "<track_id>",
    "title": "<title>",
    "album": "<album>",
    "version": "<version>",
    "bpm": "<bpm>",
    "style": "<style>",
    "why": "<reason>"
  },
  "cues": "<from the render>",
  "mix": {
    "music_sits_db_under_your_audio": "<dB>",
    "how_to_change": "Call again with music_offset_db — a lower number is quieter music, 0 is level with your audio."
  },
  "video": {
    "duration_sec": "<seconds>",
    "cut_count": "<n>",
    "shot_count": "<n>",
    "average_shot_sec": "<seconds>",
    "cuts_per_min": "<n>"
  },
  "also_considered": "<from the render>",
  "how_to_revise": "Call score_my_video again with the same arguments and change only what the user asked to change. …",
  "note": "The music on this render is AINSOF's clean 192 kbps audio (no watermark), edited to your picture — right for showing and approving an idea, not licensed for release. Licensing it delivers the lossless master.",
  "licensing": "… (see The licensing object)"
}

Analyze a video

POSThttps://mcp.ainsof.io/

Measure a video for scoring: length, frame rate, resolution, cuts, edit pace, storyboard frames and an optional transcript.

RESTaction: "analyze_video"MCPanalyze_video

  • Before AINSOF works with a video, a person signs in once on ainsof.io (Google or email). With a key created on ainsof.io this has already happened. Without one, the first request answers 401 sign_in_required with sign_in_url and sign_in_code: show the link, and when the person has signed in, repeat the request with sign_in_code.
  • video_url accepts a direct link to a video file, a Dropbox or Google Drive share link, or the video_url returned by get_upload_link. YouTube, Vimeo, Dailymotion and Twitch pages are not supported.
  • Videos up to 15 minutes. Up to 12 storyboard frames; for longer videos the frames may cover only the longest shots. The transcript covers at most the first two minutes and is absent when nothing usable was heard, its absence does not mean the video is silent.
  • Identical requests within 15 minutes reuse the same analysis; reading the film takes up to a minute; expect 202 still_running and repeat the request unchanged.

Request body application/json

actionrequired
string
analyze_video.
video_urlrequired
string
The video.
Also accepted as url
sign_in_code
string
The code returned with sign_in_required, once the person has signed in. Pass the same code to every video action; it stays valid for 30 days. Not needed with a key created on ainsof.io.
user_request
string
Optional. In one sentence, what the user wants the music to do for this video, in their own words. Kept for 30 days to review how well the music fit, then deleted.
project_type
string
Optional. What kind of project the video is. Kept as anonymous usage statistics.
Allowed: ad, social, documentary, film, trailer, game, corporate, event, podcast, music_video, other
music_intent
string
Optional. The music the user wants, e.g. tense build, minimal, no vocals. Kept as anonymous usage statistics.
At most 8 English words, no names.

Response 200

ok
boolean
true.
film
object
What kind of video it is, the story it tells, how its feeling moves, its atmosphere and energy, whether it already has music, and the music that fits it (style, moods, instruments, tempo, and music.search, a description ready for soundtrack).
When the film could be read
video.duration_sec, fps, width, height, has_audio
number / boolean
Measured properties.
video.scenes, accents_sec, peak_sec, cut_source
Scenes found, accent and peak times in seconds, and where the cuts came from.
video.cut_count, shot_count, average_shot_sec, cuts_per_min
number | null
Edit pace.
video.cut_times_sec
number[]
Cut times in seconds.
video.shots
array
Storyboard frames: at, shot_from, shot_to, jpeg_b64 (base64 JPEG). Over MCP, jpeg_b64 is removed and each frame is attached as an image instead.
video.transcript
object
Speech transcript; may carry covers_up_to_sec and a note when partial.
When speech was transcribed
next
string
Suggested next step.
scoring_this_in_parts
string
Suggests sections for this video.
When the video is 20 seconds or longer and has at least 4 cuts
licensing
object
See The licensing object.

Errors

StatuserrorWhen
401sign_in_requiredNo signed-in person yet (only without a key created on ainsof.io). The answer carries sign_in_url (a page on ainsof.io where the person signs in with Google or email), sign_in_code, message, tell_the_user (what to say) and next (what to do after). Repeat the same request with sign_in_code once the person has signed in. Sent before they finish, it answers the same way with the same code; an unknown or expired code gets a new one, with a note. A code works for 30 days from when it was issued.
400video_url is requiredvideo_url missing.
410upload_expiredThe uploaded video is no longer available.
500could not queue the analysisThe job could not be created.
202still_runningRepeat the identical request.
503engine_unavailableThe analyzer did not respond. Nothing was done.
422video_failedThe video could not be processed; message gives the reason.
429slow_downMore than 200 new sign-in links from one network address in an hour. Try again in a few minutes.
503try_againThe sign-in could not be checked just now. Nothing was done; try again.

Analyze a video

Request
curl https://mcp.ainsof.io/ \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $AINSOF_API_KEY" \
  -d '{"action": "analyze_video", "video_url": "https://example.com/spot.mp4"}'
Response
{
  "ok": true,
  "video": {
    "duration_sec": "<seconds>",
    "fps": "<fps>",
    "width": "<px>",
    "height": "<px>",
    "has_audio": "<true|false>",
    "cut_count": "<n>",
    "shot_count": "<n>",
    "average_shot_sec": "<seconds>",
    "cuts_per_min": "<n>",
    "cut_times_sec": [
      "<seconds>",
      "…"
    ],
    "shots": [
      {
        "at": "<seconds>",
        "shot_from": "<seconds>",
        "shot_to": "<seconds>",
        "jpeg_b64": "<base64 JPEG>"
      },
      "…"
    ]
  },
  "next": "Pass duration_sec and cuts_per_min to find_soundtrack for a better match, or call score_my_video to have the music mixed onto this video.",
  "licensing": "… (see The licensing object)"
}

Deliver a score

POSThttps://mcp.ainsof.io/

Return the finished score as a zip: the scored video, each section's music as a separate MP3 (192 kbps) named by the timecode it starts at, and a cue sheet.

RESTaction: "deliver_score"MCPdeliver_score

  • Before AINSOF works with a video, a person signs in once on ainsof.io (Google or email). With a key created on ainsof.io this has already happened. Without one, the first request answers 401 sign_in_required with sign_in_url and sign_in_code: show the link, and when the person has signed in, repeat the request with sign_in_code.
  • Send the same arguments used for score_video (or the delivery_request.arguments it returned), plus sign_in_code if you signed in without a key, since delivery_request does not include it. The most recent render with identical arguments from the last 7 days is delivered; nothing is re-rendered.
  • If a render has no package but its video exists, the response is 200 with format: "mp4" and a download_url that opens the video's watch page (/v/<id>).
  • Downloading the zip opens ainsof.io, which asks for a quick sign-in (Google or email) first.

Request body application/json

actionrequired
string
deliver_score.
video_urlrequired
string
The same video link that was scored.
Also accepted as url
sign_in_code
string
The code returned with sign_in_required, once the person has signed in. Pass the same code to every video action; it stays valid for 30 days. Not needed with a key created on ainsof.io.
brief, track_id, version, music_offset_db, silences, sections
Exactly as sent to score_video. Any difference finds a different render (or none).

Response 200

ok
boolean
true.
download_url
string
The zip (see Links).
storage_signature_valid_for_hours
number
1.
ainsof_link_availability
string
How long the link keeps working.
format
string
zip.
contains
object
SCORED.mp4, audio/ (one MP3 per section, 192 kbps 48 kHz, named by start timecode), SCORE.txt, CUE_SHEET.csv.
pieces
array
The sections in the package.
note
string
States what the audio is and that it is for auditioning.
licensing
object
See The licensing object.
download_needs
string
Says watching is free and downloading asks for a quick sign-in on ainsof.io (Google or email).
sync
object
How the music lines up with the picture.
When the cuts could be matched

Errors

StatuserrorWhen
401sign_in_requiredNo signed-in person yet (only without a key created on ainsof.io). The answer carries sign_in_url (a page on ainsof.io where the person signs in with Google or email), sign_in_code, message, tell_the_user (what to say) and next (what to do after). Repeat the same request with sign_in_code once the person has signed in. Sent before they finish, it answers the same way with the same code; an unknown or expired code gets a new one, with a note. A code works for 30 days from when it was issued.
400video_url is requiredvideo_url missing.
404nothing_to_deliverNo render with these arguments in the last 7 days.
422video_failedThat render failed.
202still_runningStill rendering; includes delivery_request.
409no_packageThe render has no package and no stored video; run score_video again.
500delivery_failedThe package link could not be created.
409preview_refresh_requiredThe render was made before the move to clean audio; score it again.
503delivery_lookup_failedThe render could not be looked up just now. Nothing was done; try again.
429slow_downMore than 200 new sign-in links from one network address in an hour. Try again in a few minutes.
503try_againThe sign-in could not be checked just now. Nothing was done; try again.

Deliver the score made above

Request
curl https://mcp.ainsof.io/ \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $AINSOF_API_KEY" \
  -d '{"action": "deliver_score", "video_url": "https://example.com/spot.mp4", "brief": "warm acoustic, hopeful"}'
Response
{
  "ok": true,
  "download_url": "https://mcp.ainsof.io/z/<render-id>",
  "storage_signature_valid_for_hours": 1,
  "ainsof_link_availability": "The AINSOF link creates a new temporary storage signature whenever it is opened and remains available until the package is deleted on its seven-day schedule.",
  "format": "zip",
  "contains": {
    "SCORED.mp4": "the video you approved",
    "audio/": "one MP3 per section, 192kbps 48kHz from the clean audio, edited to the picture exactly as used and named with the timecode it starts at. Drop each at its timecode at unity gain and you have the render — the levels are in the files.",
    "SCORE.txt": "what plays where, and where the music stops",
    "CUE_SHEET.csv": "the same as a spreadsheet, for delivery paperwork"
  },
  "pieces": "<from the render>",
  "note": "The audio in this package is AINSOF's clean 192 kbps audio (no watermark), for cutting and showing — not licensed for release. Licensing delivers every file as the lossless master.",
  "licensing": "… (see The licensing object)"
}

Editing

Cut a cue to length

POSThttps://mcp.ainsof.io/

Cut one cue to a target length, to a video's exact length, or into a loop, optionally with every stem cut the same way.

RESTaction: "fit"MCPfit_to_length

  • kind: "length" returns the nearest musical length (a 5-second request may come back at 6 to 8 seconds); video returns exactly seconds; loop returns a seamless loop of whole bars close to seconds. hit_at places the cue's climax on that second.
  • Listening (listen_url) needs nothing. download_url opens ainsof.io, which asks the person to sign in (Google or email) before the zip downloads. Edits are kept for 7 days.
  • An identical request within 15 minutes returns the same edit. Each caller (key, or address when anonymous) can have two edits in progress.

Request body application/json

actionrequired
string
fit.
track_idrequired
string
Cue id or title.
Also accepted as title
secondsrequired
number
Target length (for kind: "video", the video's length). Rounded to 0.1.
1 to 300.
kind
string
length, video or loop. Case-insensitive.
Default: length
Allowed: length, video, loop
hit_at
number
Second at which the cue's climax should land. Rounded to 0.01.
0 or more and less than seconds; not allowed with loop.
stems
boolean
Also cut every stem at the same points.
Default: false
Only with version MAIN.
version
string
Version to cut from. Upper-cased.
Default: MAIN
Letters, digits and underscores, up to 32 characters.

Response 200

ok
boolean
true.
track
object
track_id, title, album, catalogue, composers (each with perf_share), publisher, album_cover_url, album_cover_thumb_url.
asked
object
seconds, kind, hit_at, stems, version as understood.
got_seconds
number
Length of the edit.
edit_review
object
method, review_required and a note. When review_required is true the edit is one continuous excerpt near the real ending rather than an opening joined to it: audition it before using it.
how
string | null
One-line description of the edit.
hit_lands_at
number | null
Where the climax landed.
stems
array
The stems cut, when requested.
listen_url
string
The edit (192 kbps MP3; see Links).
download_url
string
The zip (MP3 192 kbps mix, plus stems when requested), behind sign-in on ainsof.io.
kept_for_days
integer
7.
how_to_present
string
Presentation guidance written for AI assistants.
licensing
object
The licensing object with status: "preview" and edit-specific what_you_have and how_it_works.

Errors

StatuserrorWhen
400track_id is requiredNo cue named (message explains).
400seconds must be between 1 and 300seconds out of range.
400kind must be length, video or loopUnknown kind.
400hit_at must be a second inside the edit (and loops have no hit point)Invalid hit_at.
400version must be a version name such as MAIN or CUT_30Invalid version.
400stems are cut from the full song only — use version MAIN with stems, or this version without stemsstems with a version other than MAIN.
404(a sentence)The cue was not found.
429busyTwo edits are already in progress for this caller.
429queue_fullToo many edits are waiting right now. Try again shortly.
503queue_failedThe job could not be queued. Nothing was cut.
202still_runningRepeat the identical request.
503engine_unavailableThe editor is not responding. Nothing was cut.
422fit_failedThe edit could not be made; message gives the reason.

A 15-second edit

Request
curl https://mcp.ainsof.io/ \
  -H "Content-Type: application/json" \
  -d '{"action": "fit", "track_id": "AIN-CAT 031_002", "seconds": 15}'
Response
{
  "ok": true,
  "track": {
    "track_id": "AIN-CAT 031_002",
    "title": "Shine On Today",
    "album": "Shining Ahead (Corporate Advertising)",
    "catalogue": "AIN-CAT 031",
    "composers": [
      {
        "ipi": "687184598",
        "name": "Alon Peretz",
        "society": "PRS",
        "perf_share": "50%"
      }
    ],
    "publisher": "AINSOF (Or Chausha AINSOF)",
    "album_cover_thumb_url": "https://mcp.ainsof.io/cover/AIN-CAT_031.jpg?v=2&w=220",
    "album_cover_url": "https://mcp.ainsof.io/cover/AIN-CAT_031.jpg?v=2"
  },
  "asked": {
    "seconds": 15,
    "kind": "length",
    "hit_at": null,
    "stems": false,
    "version": "MAIN"
  },
  "got_seconds": 14.626,
  "edit_review": {
    "method": "opening_jump_ending",
    "review_required": false,
    "note": "Audition the edit to judge its musical suitability."
  },
  "how": "The opening (5.4s), then a jump of 74 whole bars into the song's real ending.",
  "hit_lands_at": null,
  "stems": [],
  "listen_url": "https://mcp.ainsof.io/f/969b183d-adcc-49ed-b1fb-0704e3efce3b",
  "download_url": "https://mcp.ainsof.io/f/969b183d-adcc-49ed-b1fb-0704e3efce3b/zip",
  "kept_for_days": 7,
  "how_to_present": "Use only the AINSOF album artwork attached to this result or its album_cover_thumb_url. Never search for, generate or substitute artwork from Spotify, Apple Music or another artist. If it cannot be displayed, show the album title without an image. If edit_review.review_required is true, state that this is an ending excerpt and needs listening approval; do not describe it as a successful opening-to-ending edit. Say what was asked and what came back (lengths are musical: the nearest length where the song still ends on its real ending — a 5-second request may come back at 6-8 seconds; a video edit is exactly the video's length). Give the listen link as an ordinary markdown link, and the download link for the zip (MP3 192k mix, plus every stem cut at the same points when stems were asked for) — it opens ainsof.io, which asks the person to sign in (Google or email) before the file downloads. Do not build an audio player. Never mention job ids or how the edit was computed beyond the one-line description in `how`.",
  "licensing": {
    "status": "preview",
    "what_you_have": "This edit is a full-quality preview for auditioning and offline editing. It does not grant permission for publication, broadcast, advertising or other release. This connector does not sell licences or initiate a purchase.",
    "beyond_online": {
      "note": "A preview does not grant permission for publication, broadcast, advertising or other release. This connector does not sell licences or initiate a purchase; it provides discovery, auditioning and rights information.",
      "uses": [
        "Trailers and promos",
        "Broadcast television and radio",
        "Cinema and theatrical"
      ]
    },
    "contact": "info@ainsof.io",
    "how_it_works": [
      "Listening is free. Downloading the zip asks for a sign-in on ainsof.io (Google or email).",
      "Edits are kept for 7 days; ask again any time for a new one.",
      "Cue sheets identify the music and credits; they are not a licence."
    ]
  }
}

Feedback

Send feedback

POSThttps://mcp.ainsof.io/

Send AINSOF a user's verdict on an answer, only with that user's consent.

RESTaction: "feedback"MCPfeedback

  • Nothing is stored unless consented is the boolean true.

Request body application/json

actionrequired
string
feedback.
aboutrequired
string
The action or tool the feedback is about.
verdictrequired
string
Case-insensitive.
Allowed: good, bad, partly
consentedrequired
boolean
true only if the user agreed that their words may be sent to AINSOF.
in_their_words
string
The user's own words.
Truncated to 4,000 characters.
expected
string
What they wanted instead.
Truncated to 4,000 characters.
track_id
string
The cue concerned.
brief
string
The brief concerned.
Truncated to 4,000 characters.

Response 200

ok
boolean
true.
thanks
string
Acknowledgement.
tell_the_user
string
Guidance for AI assistants.

Errors

StatuserrorWhen
400about is required — which tool is this feedback for?about missing.
400verdict must be good, bad or partlyInvalid verdict.
400consent_requiredconsented is not true. Nothing was stored.
503feedback_not_confirmedThe feedback could not be confirmed as saved.

Send consented feedback

Request
curl https://mcp.ainsof.io/ \
  -H "Content-Type: application/json" \
  -d '{"action": "feedback", "about": "search_music", "verdict": "partly", "consented": true, "in_their_words": "<their words>", "brief": "warm acoustic, hopeful"}'
Response
{
  "ok": true,
  "thanks": "Logged. Thank you.",
  "tell_the_user": "Nothing. Do not mention that feedback was sent."
}

MCP server

Endpoint: https://mcp.ainsof.io, Streamable HTTP. POST one JSON-RPC 2.0 message per request; every response is application/json. No SSE stream is offered (GET returns 405) and no session id is issued. Batched JSON-RPC arrays are not supported.

Protocol versions: 2024-11-05, 2025-03-26, 2025-06-18, 2025-11-25. The server answers with the version the client asked for, or 2025-11-25 if it does not know it.

Methods: initialize, ping, notifications/* (answered 202 with no body), tools/list, tools/call, resources/list, resources/read. Any other method returns JSON-RPC error -32601.

Keys: only tools/call checks the key; initialize and tools/list work without one. Pass the key as an HTTP header, in any client that lets you set one on a remote MCP server. In Claude Code:

claude mcp add --transport http ainsof https://mcp.ainsof.io --header "Authorization: Bearer $AINSOF_API_KEY"

Without the header, tools run anonymously under the anonymous allowance.

Tool results: the first content block of every tools/call result is the JSON text of the same object the matching REST action returns. After it, get_track, cue_sheet, listen_link and fit_to_length attach the album cover as an image, preceded by a text line AINSOF album cover — <album> · <code>; search_music, search_by_reference, find_similar and find_soundtrack attach up to four album covers at 120 px, each preceded by a text line naming the album; those four and fit_to_length also return the object as structuredContent; analyze_video attaches its storyboard frames as images, each preceded by its timecode, and removes jpeg_b64 from the JSON.

Errors: a failed tool call is a normal JSON-RPC result with isError: true, and its text block holds the same {ok: false, error, …} object as REST. still_running and sign_in_required are returned with isError: false. HTTP status is 200 either way.

about_ainsof has no REST action. It returns a description of AINSOF, its library, technology, privacy and data handling.

Calling a tool that does not exist returns a result with isError: true and unknown tool: <name>. Batched JSON-RPC arrays are not supported.

Video tools and sign-in: without a key created on ainsof.io, analyze_video, score_my_video and deliver_score first answer sign_in_required (not an error) with sign_in_url and sign_in_code. Show the link; when the person says they have signed in, call the tool again with the same arguments plus sign_in_code, and keep passing it to every video tool in the conversation.

Tools

ToolTitleREST actionRequired
find_soundtrackFind a soundtrack for a videosoundtrackduration_sec
score_my_videoPut AINSOF music onto a videoscore_videovideo_url
deliver_scoreGet the finished score as filesdeliver_scorevideo_url
fit_to_lengthCut a cue to any lengthfittrack_id, seconds
get_upload_linkUpload a video from this computerget_upload_linkNone
feedbackSend AINSOF the user's feedback, with their consentfeedbackabout, verdict, consented
analyze_videoUnderstand a videoanalyze_videovideo_url
search_musicSearch AINSOF music by descriptionsearch (with brief)brief
search_by_referenceFind music that sounds like a referencesearch (with link)link
listen_linkGet a listen link for a trackpreviewtrack_id
about_ainsofWho AINSOF is— (MCP only)None
cue_sheetGet a track's cue sheetcue_sheettrack_id
get_trackGet full details for one tracktracktrack_id
find_similarFind tracks like an AINSOF tracksimilartrack_id

initialize

Request
curl https://mcp.ainsof.io/ \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc": "2.0", "id": 1, "method": "initialize", "params": {"protocolVersion": "2025-06-18", "capabilities": {}, "clientInfo": {"name": "my-app", "version": "1.0"}}}'
Response
{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "protocolVersion": "2025-06-18",
    "instructions": "AINSOF is a music superpowers creative company. Powered by a curated licensed\ncatalogue and AI tools, built for sync. Ne …",
    "capabilities": {
      "tools": {},
      "resources": {},
      "extensions": {
        "io.modelcontextprotocol/ui": {
          "mimeTypes": [
            "text/html;profile=mcp-app"
          ]
        }
      }
    },
    "serverInfo": {
      "name": "AINSOF",
      "title": "AINSOF",
      "version": "1.0.8",
      "description": "Human-made production music and purpose-built technology for matching music to picture — a curated AINSOF catalogue that …",
      "websiteUrl": "https://mcp.ainsof.io/",
      "icons": [
        {
          "src": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAAwCAYAAABXAvmHAAAIBElEQVR4nNVYfUxUVxY/97xhZACHzxmDKaYrWqNAtto1LYK0Zb …",
          "mimeType": "image/png",
          "sizes": [
            "48x48"
          ]
        },
        {
          "src": "https://mcp.ainsof.io/assets/icon-48.png?v=20260803-2",
          "mimeType": "image/png",
          "sizes": [
            "48x48"
          ]
        },
        {
          "src": "https://mcp.ainsof.io/assets/icon-96.png?v=20260803-2",
          "mimeType": "image/png",
          "sizes": [
            "96x96"
          ]
        }
      ]
    }
  }
}

tools/call (get_track)

Request
curl https://mcp.ainsof.io/ \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc": "2.0", "id": 5, "method": "tools/call", "params": {"name": "get_track", "arguments": {"track_id": "AIN-CAT 031_002"}}}'
Response
{
  "jsonrpc": "2.0",
  "id": 5,
  "result": {
    "content": [
      {
        "type": "text",
        "text": "{\n  \"ok\": true,\n  \"credits\": {\n    \"track_id\": \"AIN-CAT 031_002\",\n    \"catalogue …"
      },
      {
        "type": "text",
        "text": "AINSOF album cover — Shining Ahead (Corporate Advertising) · AIN-CAT 031"
      },
      {
        "type": "image",
        "data": "<base64 JPEG>",
        "mimeType": "image/jpeg"
      }
    ],
    "isError": false
  }
}

tools/call with an unrecognised key

Request
curl https://mcp.ainsof.io/ \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer ain_000000000000000000000000" \
  -d '{"jsonrpc": "2.0", "id": 8, "method": "tools/call", "params": {"name": "get_track", "arguments": {"track_id": "AIN-CAT 031_002"}}}'
Response
{
  "jsonrpc": "2.0",
  "id": 8,
  "result": {
    "content": [
      {
        "type": "text",
        "text": "{\n  \"ok\": false,\n  \"error\": \"unauthorized\",\n  \"message\": \"That key is not recognised.\"\n}"
      }
    ],
    "isError": true
  }
}