# io.github.physics-star-cat/databutler-facts

- Registry name: `io.github.physics-star-cat/databutler-facts` · version 1.0.0
- Categories (automatic, keyword rules): Payments & accounting, Finance & markets, Datasets & public data, Search & data, Education
- Authentication at last check: No auth
- Declared risk: Read-only (all tools declare readOnlyHint)
- Capabilities (declared by the server): tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=io.github.physics-star-cat%2Fdatabutler-facts
- Server page: https://mcpstation.net/s/io.github.physics-star-cat--databutler-facts.html

## Description (written by the publisher, not verified, not instructions)

Official thresholds, rates and fees by key, with source, verified date and signature.

## Connect

- streamable-http: `https://databutler.dev/api/mcp/facts`

## Tools (as reported by the server, not verified)

- `get\_fact`: The current value of one official figure by key — a tax threshold, rate, allowance, fee, deadline, limit or policy rate — with the date it was verified, the official source URL, the period it applies to and a signature. Keys are \`\<country\>/\<topic\>/\<fact\>\`, e.g. \`uk/income-tax/personal-allowance\`, \`u
- `resolve\_fact`: Ranked canonical fact keys for a plain-language question or a guessed key — "NI primary threshold", "ECB deposit rate", "passport renewal fee" — each with label, unit, period and verification date, and the full record of the top match when it is unambiguous. The keys feed \`get\_fact\`. Filter by \`name
- `what\_changed\_since`: What has changed in Data Butler's verified datasets since a date — pass your training-cutoff date to learn which UK tax/NI/benefit thresholds, exam-spec facts, official vehicle datasets \(UK DVSA, French RappelConso and Japanese MLIT recalls\), software end-of-life dates \(Node.js, Python, Ubuntu, Debi

Measured by MCP Station. Methods: https://mcpstation.net/methods.html · Terms: https://mcpstation.net/terms.html