us-gov-open-data-mcp and legiscan-mcp
These are complements: the broader government data aggregator (A) provides multi-source legislative access alongside other federal datasets, while the specialized LegiScan wrapper (B) offers deeper state-level legislative tracking and bill monitoring through a single authoritative source, allowing users to combine them for comprehensive U.S. legislative coverage from federal to state levels.
About us-gov-open-data-mcp
lzinga/us-gov-open-data-mcp
MCP server + TypeScript SDK for 40+ U.S. government data APIs — 250+ tools. Treasury, FRED, Congress, FDA, CDC, FEC, lobbying, and many more. Works with VS Code Copilot, Claude Desktop, Cursor.
Implements WASM-sandboxed JavaScript execution ("code mode") to reduce context window usage by 98-100% for large responses, and provides built-in cross-referencing logic that guides LLMs to correlate data across agencies (e.g., FDA adverse events + lobbying spend). Dual transport support (stdio for desktop, HTTP Stream for remote) pairs with disk-backed caching and token-bucket rate limiting with exponential backoff. The TypeScript SDK also works standalone without the MCP server, with every API available as a typed importable module.
About legiscan-mcp
sh-patterson/legiscan-mcp
MCP server for the LegiScan API. Access legislative data from all 50 US states and Congress - search bills, get full text, track votes, look up legislators, and monitor legislation changes.
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