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Scoreproof MCP Server

by asampat3090 Your server? Claim it
answering

Scoreproof is answering right now. Last checked 13 min ago. 843 installs a week from pypi. It exposes 8 tools. Last commit 5 Nov 2026.

Convert MusicXML, MIDI, ABC, MEI and Humdrum, print sheet music, and verify every note survived.

Installs per day peak 321 · avg 38 · +169% w/w
a month agotoday
Uptime history 50 hours of history
50 hours agonow
100.0%
Uptime 24h
91 of 91 checks
8
Tools
read from the server
404 ms
Response time
average over 24h
843
Installs / week
npm and PyPI

Nothing serious here today

Today is the operative word: we check Scoreproof every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 13 min ago.

run in your terminal
claude mcp add scoreproof --transport http https://scoreproof-fkkuctjokq-uc.a.run.app/mcp
Settings → Connectors → Add custom connector, then paste this address
https://scoreproof-fkkuctjokq-uc.a.run.app/mcp
~/.codex/config.toml
[mcp_servers.scoreproof]
url = "https://scoreproof-fkkuctjokq-uc.a.run.app/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "scoreproof": {
      "url": "https://scoreproof-fkkuctjokq-uc.a.run.app/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "scoreproof": {
      "type": "http",
      "url": "https://scoreproof-fkkuctjokq-uc.a.run.app/mcp"
    }
  }
}

Available tools 8

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

compare
compare
Show what changed between two versions of a piece, bar by bar, even across formats.
convert
convert
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.
extract
extract
Save chosen parts and/or bars of a score as new files.
formats
list_formats
Formats Scoreproof reads and writes, and what each one cannot hold.
inspect
inspect
Summarise a score and show some bars as ABC notation: title, parts with instruments and ranges, key, meters, tempos and bar count.
render
render
Engrave sheet music to print or view (PDF, PNG, SVG) or make an audio preview (WAV). Returns download links.
transpose
transpose
Transpose a score by an interval, into a key, or between concert and written pitch. Give exactly one of interval, key or pitch.
validate
validate
Check a score: exporter quirks that needed repair, bars that do not fill their time signature, and notes outside an instrument's range.

Endpoints

URLTransportStateLatencyChecked
https://scoreproof-fkkuctjokq-uc.a.run.app/mcp streamable-http answering 233 ms 13 min ago

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Scoreproof — questions

Answers built from our own checks of this server.

What can Scoreproof do?
It exposes 8 tools, read directly from the server on our last check. Among them: compare, convert, extract, inspect, list_formats, render and 2 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Scoreproof working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 404 ms. The bar chart above shows every period we have measured.
How do I connect Scoreproof?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Scoreproof need an API key?
No. Scoreproof completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 8 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Scoreproof?
It answers our handshake in 404 ms on average, which is faster than 32% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
How many people use Scoreproof?
The pypi package scoreproof was installed 843 times in the last week. Week over week that is +169%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Scoreproof open source?
The code is open source: it is published under the MIT licence, written in Python and 0 stars on GitHub. The licence covers the code in the repository, not the hosted service at scoreproof-fkkuctjokq-uc.a.run.app, which runs on its operator's own terms.