Each group below lists the supported routes, filters, and example requests. For shared integration behavior such as pagination and includes, use Docs.
Browse federal bills and laws. When you need more than the main bill record, you can add related data to the same response.
List federal bills with filters for Congress, type, chamber, sponsor, status, and keyword query.
/api/v1/bills?congress=119&type=HR&per_page=20Return one bill. Add actions, text versions, amendments, committees, related bills, votes, and enacted law links in the same response.
/api/v1/bills/119/HR/1?include=actions,texts,amendments,related,laws,votesList public and private laws with linkage back to the originating bill when available.
/api/v1/laws?congress=119&law_type=publicReturn one law plus the linked bill object.
/api/v1/laws/119/public/21Browse House and Senate votes, and add the member-by-member roll call when you need it.
List House and Senate votes with filters for Congress, session, chamber, bill linkage, result, and question text.
/api/v1/votes?congress=119&chamber=house&per_page=20Return one vote. Add include=results to include the member-by-member roll call.
/api/v1/votes/119/1/house/304?include=resultsLook up current members and add biography, term history, or committee assignments when needed, including member biographies that are otherwise awkward to assemble cleanly from official sources.
List legislators with filters for Congress, chamber, party, state, and name query.
/api/v1/legislators?congress=119&state=PAReturn one legislator with optional biography, terms, and committee memberships. Biography is available as a detail-only include.
/api/v1/legislators/A000370?include=biography,terms,committee_membershipsBrowse current federal committees and, if needed, include the members tied to each one. Committee activity subresources for meetings and nominations are current-Congress only.
List committees with filters for chamber, type, committee query, and current/all scope.
/api/v1/committees?chamber=House&type=StandingReturn one committee with parent committee links and, if requested, the member list with direct legislator links.
/api/v1/committees/HSJU05?include=membershipsList committee meetings and hearings for the current Congress only, with pagination and official event links.
/api/v1/committees/SSJU00/meetings?per_page=5List committee nominations for the current Congress only. Most useful for Senate committees.
/api/v1/committees/SSFR00/nominations?per_page=5Browse topic pages and the federal bills grouped under each subject area.
List topic slugs and coverage windows for fast discovery.
/api/v1/topics?q=appropriation&per_page=10Return one topic with coverage, congress counts, bills in data, and pagination links in top-level meta.
/api/v1/topics/abandonment-of-family?congress=110&per_page=3