Openstates Mcp Server

Search state legislative bills across all covered US jurisdictions. Supports full-text search, jurisdiction/session filtering, subject tags, sponsor lookups, and sort order. Either jurisdiction or q (full-text) is required, and pairing them is the reliable form — a q-only search spans all 56 jurisdi

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 include to request votes, actions, sponsorships, documents, and versions in one call rather than searching again. includ

Search state legislators and officials by name, jurisdiction, chamber, district, or party. jurisdiction is required — a search spanning all 56 jurisdictions exceeds the upstream timeout, including a name-only one, so scope every call to a single state. Use openstates_list_jurisdictions to pick one,

Find all state legislators representing a geographic coordinate. Pass latitude and longitude to get state senators and representatives (and potentially governor/executive officials) for that location. Useful for constituent-to-representative matching, address-based policy research, and electoral bou

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 openstates_list_jurisdictions to pick one. Experimental — Open States is actively working to restore committee support and n

Fetch committee detail by OCD organization ID. Returns name, classification, and membership roster when include=memberships is requested. Experimental — not all states have committee data in Open States. Obtain the committee_id from openstates_search_committees.

Search hearings, floor sessions, and committee meetings. Experimental — most states do not publish event data to Open States. Use after and before to scope to a date range. Set require_bills=true to filter to events with bills on the agenda, which is the most useful filter for tracking legislation t

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 Open States. Obtain the event_id from openstates_search_events.

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 in total, returned complete in a single default call. Returns coverage metadata: latest bill update time, latest people

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 for a state before filtering bill searches — session formats vary widely (e.g., "2025", "2025rs", "2025s1"). Jurisdiction