MCP serverio.github.cyanheads/openstates-mcp-server

Fetch full detail for a specific state bill. Accepts either the three-part path (jurisdiction + session + bill_id) or a direct OCD bill ID (openstates_id from search results). Use

Fetch committee detail by OCD organization ID. Returns name, classification, and membership roster when include=memberships is requested. Experimental — not all states have committ

Fetch full event detail by OCD event ID. Returns agenda, participants, media links, and associated documents when requested via include. Experimental — event coverage is limited in

Fetch full metadata for a specific jurisdiction including all legislative sessions, their identifiers, and coverage dates. Use when you need to know the exact session identifier fo

Find every legislator representing a geographic coordinate — both tiers. Pass latitude and longitude to get the state senators and representatives for that location (and potentiall

List all jurisdictions covered by Open States — all 50 states, DC, and 5 US territories (American Samoa, Guam, Northern Mariana Islands, Puerto Rico, and the US Virgin Islands): 56

Search state legislative bills across all covered US jurisdictions. Supports full-text search, jurisdiction/session filtering, subject tags, sponsor lookups, and sort order. Either

List committees for a jurisdiction. jurisdiction is required — a request spanning all 56 jurisdictions exceeds the upstream timeout, so scope every call to a single state; use open

Search hearings, floor sessions, and committee meetings. jurisdiction is required — the Open States events endpoint has no all-states search, so scope every call to a single state;

Search state legislators and officials by name, jurisdiction, chamber, or district, or fetch specific people by OCD person ID. Party is reported on every result but cannot be filte