databutler facts for Claude.ai

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

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

client:Claude.ai transport:streamable-http tools:3

Install databutler facts in Claude.ai

Settings → Connectors → Add custom connector

https://databutler.dev/api/mcp/facts

Claude on the web takes a remote URL and completes OAuth in the browser. For a packaged server use Claude Desktop or Claude Code instead. Claude.ai docs

What Claude.ai can do once it is connected

get_fact
resolve_fact
what_changed_since

databutler facts in other clients

Claude Code
Claude Desktop
Cursor
VS Code
Zed
Windsurf
Cline
Gemini CLI
Grok
ChatGPT
LangChain

databutler facts MCP server