US Government Open Data MCP

41 Government APIs

Treasury, FRED, Congress, FEC, CDC, FDA, SEC, FBI, EPA, NOAA, and 31 more — all through a single interface.

Cross-Referenced Automatically

Ask about a drug and get FDA adverse events, clinical trials, NIH grants, lobbying spend, and congressional activity in one query.

21 APIs Need No Key

Treasury, Federal Register, USAspending, World Bank, CDC, FDA, EPA, and more work instantly. The rest use free keys.

Standalone SDK

Every API is importable as a typed TypeScript client — no MCP server required. Caching, retry, and rate limiting built in.

Multiple Transports

Works via stdio or HTTP Stream with any MCP client — VS Code Copilot, Claude Desktop, Cursor, or your own.

Selective Loading

Load only the modules you need for faster startup and smaller tool lists.

Showcases

These long-form analyses were generated entirely from live government API data — no manual data entry. They demonstrate what's possible when cross-referencing multiple data sources.

Analysis	What it shows	APIs used
Worst-Case Impact	PAC money to committee votes to measurable public cost — one case per party	Congress, FEC, FDIC, FRED, World Bank, Senate Lobbying
Best-Case Impact	Senators defying industry pressure to pass legislation with positive outcomes	Congress, FEC, Senate Lobbying, USAspending
Presidential Scorecard	Clinton through Trump II — identical metrics, side-by-side, with context	FRED, Treasury, Federal Register, Congress
Deficit Reduction	Best Democratic plan vs. best Republican plan, graded on realism	Treasury, FRED, USAspending, World Bank, Congress, BLS

Analysis

What it shows

APIs used

Worst-Case Impact

PAC money to committee votes to measurable public cost — one case per party

Congress, FEC, FDIC, FRED, World Bank, Senate Lobbying

Best-Case Impact

Senators defying industry pressure to pass legislation with positive outcomes

Congress, FEC, Senate Lobbying, USAspending

Presidential Scorecard

Clinton through Trump II — identical metrics, side-by-side, with context

FRED, Treasury, Federal Register, Congress

Deficit Reduction

Best Democratic plan vs. best Republican plan, graded on realism

Treasury, FRED, USAspending, World Bank, Congress, BLS

Disclaimer

This project integrates 41+ government APIs, many of which have large, complex, or inconsistently documented schemas. AI is used as a tool throughout this project to help parse API documentation, generate type definitions, and scaffold tool implementations — making it possible to cover this much surface area and get people access to government data faster than would otherwise be feasible. While every effort has been made to ensure accuracy, some endpoints may return unexpected results, have incomplete parameter coverage, or behave differently than documented.

This is a community-driven effort — if you find something that's broken or could be improved, please open an issue or submit a PR. Contributions that fix edge cases, improve schema accuracy, or expand coverage are especially welcome. The goal is to make U.S. government data as accessible and reliable as possible, together.

All data is sourced from official U.S. government and international APIs — the server does not generate, modify, or editorialize any data. Data accuracy depends on the upstream government APIs. Correlation does not imply causation. This tool is for research and informational purposes — not legal, financial, medical, or policy advice.

US Government Open DataMCP Server + TypeScript SDK