LegisDataLegislative data for developers & AI agents
The U.S. state legislature, as a clean API — REST or MCP.
Bills, roll-call votes, legislators, and lifecycle events across all 50 states — normalized, deduplicated, and enriched with derived metrics like bipartisanship, popularity, ideological lean, and legislative velocity. Call it as a REST API, or plug it into your AI assistant as an MCP server.
346,751
Bills tracked
8,992,425
Recorded votes
7,960
Legislators
50
Jurisdictions
Two ways to connect
REST API
Clean, paginated JSON over five endpoints — bill search & detail, legislators, and vote histories. Bearer-key auth, an OpenAPI spec, and normalized chambers/topics.
REST docs →MCP server
The same data as native tools for AI assistants — enum-constrained inputs and token-frugal, model-shaped responses. Drops into Claude and other MCP clients.
MCP setup →Pricing
All access
$150/mo
- Every REST endpoint + the MCP server
- All 50 states, updated continuously
- Flat rate — no per-tier limits
Subscribe with a card in a minute — cancel anytime. Prefer the docs first? Try it live.