Scoreproof MCP

Scoreproof is an open-source music-format converter that verifies every note survives conversion between MusicXML, MIDI, ABC, MEI, and Humdrum. It allows AI agents to convert scores, generate printable sheet music (PDF/PNG), repair notation quirks, and analyze differences between drafts via the MCP protocol.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Community listingStreamable HTTPNo sign-inEndpoint checked 2026-11-07Published by asampat3090

You need:It needs uv ( brew install uv or pip install uv )

MCP endpoint (Streamable HTTP)

https://scoreproof-fkkuctjokq-uc.a.run.app/mcp

Vendor documentation

What its tools do

8 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Can change data (4)

convert
render
transpose
extract

8 of 8 have a description · 8 of 8 declare behavior hints · 7 of 7 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

Passed Endpoint answered the live check · Nov 7, 2026, 8:27 AM UTC
Availability 1 of 1 checks passed in 30 days

What you can do with it

Convert MIDI files to readable MusicXML notation
Generate printable PDF sheet music from audio scores
Verify that no notes were lost during format conversion
Split a full score into individual instrument parts

Source and maintenance

Community listingRegistry 0.2.0

mcp-registry: io.github.asampat3090/scoreproof@0.2.0 Source repository

Maintenance checked: Nov 7, 2026, 6:07 AM UTC

Protocol and capabilities

Server: scoreproof 0.1.0
MCP protocol negotiated in check: 2025-11-25
Tools: 8 advertised
Resources: 0 advertised
Resource templates: 0 advertised
Prompts: 0 advertised

Server-advertised capabilities

{
  "tools": {
    "listChanged": false
  },
  "prompts": {
    "listChanged": false
  },
  "resources": {
    "subscribe": false,
    "listChanged": false
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Scoreproof converts, checks and transforms music files: MusicXML, MIDI, ABC, MEI and Humdrum. It makes printable sheet music (PDF, PNG) and audio. - Give each tool either `file`, a link to the music file, or `content`, the score itself as text (ABC, MusicXML, MEI or Humdrum) with a `filename`. - Files attached in this chat cannot be passed on. For MIDI or other files, ask the user to upload them at https://scoreproof-fkkuctjokq-uc.a.run.app and paste the link it gives. - To write music yourself, compose it in ABC and pass it as `content`, then render it to PDF so the user gets sheet music. - Results are download links that work for a day. Share them with the user. - Every conversion is verified note by note. Tell the user the confidence and anything that was lost. - To read or discuss the music, use `inspect`: it returns a summary and an ABC excerpt. - MIDI played in a DAW or on a keyboard is read as notation automatically. Results include an `interpretation`; mention the tempo and key it chose. - Native Sibelius, Dorico, Finale and MuseScore files are not supported. Ask the user to export MusicXML from their app.

Tools

8 advertised

convert — Convert a music file

Advertised by the server during the last successful anonymous check.

Open-world

Convert a score between formats and verify the result note by note, or turn it into sheet music (pdf, png, svg) or audio (wav). Returns a download link, a confidence level (exact, high, medium, low), the share of notes kept, features the target format cannot hold, and exporter quirks that were repaired on the way in.

convert input schema

{
  "type": "object",
  "title": "convert_fileArguments",
  "required": [
    "to"
  ],
  "properties": {
    "to": {
      "type": "string",
      "title": "To",
      "description": "musicxml, mxl, midi, abc, mei, humdrum, or pdf/png/svg (sheet music) or wav (audio)"
    },
    "file": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "File",
      "default": null,
      "description": "Link to the music file: from the Scoreproof upload page, or any public https URL"
    },
    "content": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Content",
      "default": null,
      "description": "The score itself as text (ABC, MusicXML, MEI or Humdrum)"
    },
    "filename": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Filename",
      "default": null,
      "description": "Name for content, with its extension (default tune.abc)"
    }
  }
}

convert output schema

{
  "type": "object",
  "title": "convert_fileDictOutput",
  "additionalProperties": true
}

convert annotations

{
  "readOnlyHint": false,
  "openWorldHint": true,
  "idempotentHint": false,
  "destructiveHint": false
}

render — Render sheet music or audio

Advertised by the server during the last successful anonymous check.

Open-world

Engrave sheet music to print or view (PDF, PNG, SVG) or make an audio preview (WAV). Returns download links.

render input schema

{
  "type": "object",
  "title": "renderArguments",
  "properties": {
    "to": {
      "enum": [
        "pdf",
        "png",
        "svg",
        "wav"
      ],
      "type": "string",
      "title": "To",
      "default": "pdf",
      "description": "pdf: printable sheet music; png/svg: page images; wav"
    },
    "file": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "File",
      "default": null,
      "description": "Link to the music file: from the Scoreproof upload page, or any public https URL"
    },
    "content": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Content",
      "default": null,
      "description": "The score itself as text (ABC, MusicXML, MEI or Humdrum)"
    },
    "filename": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Filename",
      "default": null,
      "description": "Name for content, with its extension (default tune.abc)"
    },
    "page_size": {
      "enum": [
        "letter",
        "a4"
      ],
      "type": "string",
      "title": "Page Size",
      "default": "letter",
      "description": "Paper size for pdf and png"
    }
  }
}

render output schema

{
  "type": "object",
  "title": "renderDictOutput",
  "additionalProperties": true
}

render annotations

{
  "readOnlyHint": false,
  "openWorldHint": true,
  "idempotentHint": false,
  "destructiveHint": false
}

inspect — Look at a score

Advertised by the server during the last successful anonymous check.

Advertised read-onlyOpen-world

Summarise a score and show some bars as ABC notation: title, parts with instruments and ranges, key, meters, tempos and bar count.

inspect input schema

{
  "type": "object",
  "title": "inspectArguments",
  "properties": {
    "bars": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Bars",
      "default": "1-8",
      "description": "Bars to show as ABC, e.g. \"1-8\" (max 32); \"\" for none"
    },
    "file": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "File",
      "default": null,
      "description": "Link to the music file: from the Scoreproof upload page, or any public https URL"
    },
    "parts": {
      "anyOf": [
        {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        {
          "type": "null"
        }
      ],
      "title": "Parts",
      "default": null,
      "description": "Parts by number (1-based) or name; default all"
    },
    "content": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Content",
      "default": null,
      "description": "The score itself as text (ABC, MusicXML, MEI or Humdrum)"
    },
    "filename": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Filename",
      "default": null,
      "description": "Name for content, with its extension (default tune.abc)"
    }
  }
}

inspect output schema

{
  "type": "object",
  "title": "inspectDictOutput",
  "additionalProperties": true
}

inspect annotations

{
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}

validate — Check a score for problems

Advertised by the server during the last successful anonymous check.

Advertised read-onlyOpen-world

Check a score: exporter quirks that needed repair, bars that do not fill their time signature, and notes outside an instrument's range.

validate input schema

{
  "type": "object",
  "title": "validateArguments",
  "properties": {
    "file": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "File",
      "default": null,
      "description": "Link to the music file: from the Scoreproof upload page, or any public https URL"
    },
    "content": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Content",
      "default": null,
      "description": "The score itself as text (ABC, MusicXML, MEI or Humdrum)"
    },
    "filename": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Filename",
      "default": null,
      "description": "Name for content, with its extension (default tune.abc)"
    }
  }
}

validate output schema

{
  "type": "object",
  "title": "validateDictOutput",
  "additionalProperties": true
}

validate annotations

{
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}

compare — Compare two versions

Advertised by the server during the last successful anonymous check.

Advertised read-onlyOpen-world

Show what changed between two versions of a piece, bar by bar, even across formats.

compare input schema

{
  "type": "object",
  "title": "compareArguments",
  "required": [
    "a",
    "b"
  ],
  "properties": {
    "a": {
      "type": "string",
      "title": "A",
      "description": "Link to the first version"
    },
    "b": {
      "type": "string",
      "title": "B",
      "description": "Link to the second version"
    }
  }
}

compare output schema

{
  "type": "object",
  "title": "compareDictOutput",
  "additionalProperties": true
}

compare annotations

{
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}

transpose — Transpose a score

Advertised by the server during the last successful anonymous check.

Open-world

Transpose a score by an interval, into a key, or between concert and written pitch. Give exactly one of interval, key or pitch.

transpose input schema

{
  "type": "object",
  "title": "transposeArguments",
  "properties": {
    "to": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "To",
      "default": null,
      "description": "Output format (default: same)"
    },
    "key": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Key",
      "default": null,
      "description": "Target key, e.g. \"D\", \"Bb major\", \"F# minor\""
    },
    "file": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "File",
      "default": null,
      "description": "Link to the music file: from the Scoreproof upload page, or any public https URL"
    },
    "pitch": {
      "anyOf": [
        {
          "enum": [
            "concert",
            "written"
          ],
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Pitch",
      "default": null,
      "description": "Switch transposing instruments to concert or written pitch"
    },
    "content": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Content",
      "default": null,
      "description": "The score itself as text (ABC, MusicXML, MEI or Humdrum)"
    },
    "filename": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Filename",
      "default": null,
      "description": "Name for content, with its extension (default tune.abc)"
    },
    "interval": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Interval",
      "default": null,
      "description": "Interval (\"M2\", \"-m3\", \"P5\") or semitones (\"2\", \"-3\")"
    }
  }
}

transpose output schema

{
  "type": "object",
  "title": "transposeDictOutput",
  "additionalProperties": true
}

transpose annotations

{
  "readOnlyHint": false,
  "openWorldHint": true,
  "idempotentHint": false,
  "destructiveHint": false
}

extract — Extract parts or bars

Advertised by the server during the last successful anonymous check.

Open-world

Save chosen parts and/or bars of a score as new files.

extract input schema

{
  "type": "object",
  "title": "extractArguments",
  "properties": {
    "to": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "To",
      "default": null,
      "description": "Output format (default: same)"
    },
    "bars": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Bars",
      "default": null,
      "description": "Bar range such as \"1-8\", \"5\" or \"9-\""
    },
    "file": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "File",
      "default": null,
      "description": "Link to the music file: from the Scoreproof upload page, or any public https URL"
    },
    "parts": {
      "anyOf": [
        {
          "type": "array",
          "items": {
            "type": "string"
          }
        },
        {
          "type": "null"
        }
      ],
      "title": "Parts",
      "default": null,
      "description": "Parts by number (1-based) or name; default all"
    },
    "content": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Content",
      "default": null,
      "description": "The score itself as text (ABC, MusicXML, MEI or Humdrum)"
    },
    "filename": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "title": "Filename",
      "default": null,
      "description": "Name for content, with its extension (default tune.abc)"
    },
    "each_part": {
      "type": "boolean",
      "title": "Each Part",
      "default": false,
      "description": "One file per part (to make parts for players)"
    }
  }
}

extract output schema

{
  "type": "object",
  "title": "extractDictOutput",
  "additionalProperties": true
}

extract annotations

{
  "readOnlyHint": false,
  "openWorldHint": true,
  "idempotentHint": false,
  "destructiveHint": false
}

list_formats — List supported formats

Advertised by the server during the last successful anonymous check.

Advertised read-onlyOpen-world

Formats Scoreproof reads and writes, and what each one cannot hold.

list_formats input schema

{
  "type": "object",
  "title": "list_formatsArguments",
  "properties": {}
}

list_formats output schema

{
  "type": "object",
  "title": "list_formatsDictOutput",
  "additionalProperties": true
}

list_formats annotations

{
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

0 advertised

No prompt definitions available.

Resources

0 advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks: 1 of 1 (100%)
Average latency: 721 ms
95th percentile latency: 721 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

Nov 7, 2026, 8:27 AM UTC · probe · passed · 721 ms · metadata changed · 8 tool(s), 0 resource(s), 0 resource template(s), 0 prompt(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http scoreproof-mcp-run https://scoreproof-fkkuctjokq-uc.a.run.app/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add scoreproof-mcp-run --url https://scoreproof-fkkuctjokq-uc.a.run.app/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable scoreproof-mcp-run in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "scoreproof-mcp-run": {
      "url": "https://scoreproof-fkkuctjokq-uc.a.run.app/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).

Cline configuration

{
  "mcpServers": {
    "scoreproof-mcp-run": {
      "type": "streamableHttp",
      "url": "https://scoreproof-fkkuctjokq-uc.a.run.app/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start scoreproof-mcp-run and inspect its tools.

VS Code configuration

{
  "servers": {
    "scoreproof-mcp-run": {
      "type": "http",
      "url": "https://scoreproof-fkkuctjokq-uc.a.run.app/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http scoreproof-mcp-run https://scoreproof-fkkuctjokq-uc.a.run.app/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.

Claude Desktop configuration

https://scoreproof-fkkuctjokq-uc.a.run.app/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "scoreproof-mcp-run": {
      "serverUrl": "https://scoreproof-fkkuctjokq-uc.a.run.app/mcp"
    }
  }
}

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Scoreproof MCP

Endpoint and access

What its tools do

Read-only (4)

Can change data (4)

Checks and signals

What you can do with it

Source and maintenance

Protocol and capabilities

Server-provided instructions

Tools

Prompts

Resources

30-day availability

Maintenance history

Connect from your client

Claude Code

Codex

Cursor

Cline

VS Code

Gemini CLI

Claude Desktop

Windsurf

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