MCP server exposing 3 tools for propublica-nonprofit.
This URL is a JSON-RPC 2.0 endpoint over HTTP. Issue POST requests with a JSON-RPC body. Browsers and search crawlers land here on GET.
POST https://gateway.pipeworx.io/propublica-nonprofit/mcp
Content-Type: application/json
{"jsonrpc":"2.0","id":1,"method":"tools/list"}search_nonprofits — Search US nonprofits by name. Returns EIN, name, city, state, revenue, assets, and NTEE code. Example: search_nonprofits("red cross", "NY"). Use get_organization with the EIN for full details.get_organization — Get full nonprofit details by EIN (Employer Identification Number). Returns organization info plus recent IRS filings with revenue, expenses, and assets. Example: get_organization(131710957).get_filing — Get a specific IRS filing for a nonprofit. Returns financial data from one tax period including revenue, expenses, assets, and liabilities. Example: get_filing(131710957, 202112).Code samples (curl / TypeScript / one-click client install), schemas, and the live playground are on the pack page:
https://pipeworx.io/packs/propublica-nonprofit/
Pipeworx is an open MCP gateway connecting AI agents to live data. pipeworx.io