# Songbrain

> Best moments + video-gen prompts per scene, beats, tempo, key. Spotify Audio Features alternative.

- name: io.github.songbrain-ai/songbrain
- version: 1.0.4
- connection class: R0 (autonomous)
- trust: 97/100
- quality: 85/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.songbrain-ai%2Fsongbrain
- tools: https://api.protogrid.dev/v1/servers/io.github.songbrain-ai%2Fsongbrain/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "songbrain": {
      "type": "http",
      "url": "https://api.songbrain.ai/v1/mcp",
      "headers": {
        "X-API-Key": "${X_API_KEY}"
      }
    }
  }
}
```

Placeholders to fill: `${X_API_KEY}`.

## Trust

- hygiene: 100
- liveness: 99
- freshness: 100
- provenance: 90
- drivers: +repository +namespace-matches-repo +website +reachable +uptime-98% +updated-0d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 85/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-06-18; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 86 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 8 of 8 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: get_account (destructiveHint, idempotentHint); get_example_shot_plan (destructiveHint, idempotentHint); get_song (destructiveHint, idempotentHint); …
- pass `tools.token_cost`: about 942 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: 3 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 8, about 942 tokens to load them all
- tool set hash: 6ce885dee9d62fd65942a55e7ad84452
- tools last changed: 2026-10-20T08:18:05.782Z
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.songbrain-ai/songbrain.svg)](https://protogrid.dev/servers/io.github.songbrain-ai/songbrain)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-20 `add_video_direction` added
  - For a finished song analysed with mode 'dna': builds its story and beat-synced shot plan (scenes with seconds and image/video prompts) from the existing analysis. 15 credits, refunded if it fails. Then poll get_song (about 30 seconds).
- 2026-10-20 `analyze_song` changed (description, inputSchema)
  - before: Start the analysis of a song at a public audio URL (MP3, WAV, FLAC, M4A, AAC, OGG or AIFF; 30 s to 10 min). Needs an API key on the MCP connection. Returns a song_id; poll get_song until status is 'done' (typically 60–90 seconds, up to ~2 minutes when busy). Uses one free song or 25 credits.
  - after: Start the analysis of a song at a public audio URL (MP3, WAV, FLAC, M4A, AAC, OGG or AIFF; 30 s to 10 min). Needs an API key on the MCP connection. Returns a song_id; poll get_song until status is 'done' (typically 60–90 seconds, up to ~2 minutes when busy). Uses one free song, or 25 credits (mode 'full') / 10 credits (mode 'dna').
- 2026-10-07 `analyze_song` changed (inputSchema)

Full history: https://api.protogrid.dev/v1/servers/io.github.songbrain-ai%2Fsongbrain/changes

## Remotes

- https://api.songbrain.ai/v1/mcp (streamable-http, auth none, reachable true, uptime30d 0.9814815)

## Packages

_none_

## Tools (8)

- `add_video_direction`: For a finished song analysed with mode 'dna': builds its story and beat-synced shot plan (scenes with seconds and image/video prompts) from the existing analysis. 15 credits, refunded if it fails. Then poll get_song (about 30 seconds).
- `analyze_song`: Start the analysis of a song at a public audio URL (MP3, WAV, FLAC, M4A, AAC, OGG or AIFF; 30 s to 10 min). Needs an API key on the MCP connection. Returns a song_id; poll get_song until status is 'done' (typically 60–90 seconds, up to ~2 minutes when busy). Uses one free song, or 25 credits (mode 'full') / 10 credits (mode 'dna').
- `get_account`: Free songs left this month, credit balance and price per song for the connected key.
- `get_example_analysis`: Full analysis of an example song: Song DNA, beat grid and sections, best moments, lyrics, scores, story and shot plan. No API key needed. Summary view by default (no per-word timings or beat arrays); set view='full' for everything.
- `get_example_shot_plan`: The beat-synced shot plan of an example song: every scene with start and end seconds, its act (setup, turn or payoff), the image/video prompt, framing, motion and the lyric sung under it, plus the story, world and palette. No key needed.
- `get_pricing`: Songbrain API prices (free songs per month, price per song) and limits.
- `get_song`: Status of a song started with analyze_song, then its full analysis once done. Summary view by default; view='full' adds word timings and beat arrays.
- `list_example_songs`: List real Songbrain analyses of Songbrain's own songs (no API key needed). Use one to show what the API returns before analysing a user's song.