Bill Commons

Search bills by keyword/phrase (full-text) or normalized bill number (e.g. "HB 123", "H.B. 123", "hb123" all match). Optionally filter by jurisdiction (two-letter state code or name), chamber, and status.

Fetch the full record for one bill: metadata, sponsors, subjects, actions, versions, and vote-event summaries. Look up by canonical bill_id (UUID), or by jurisdiction + identifier (+ optional session to disambiguate).

Deterministic diff (unified + structured) between two versions of a bill's extracted text. Defaults to earliest vs. latest texted version if version ids are omitted. Errors if fewer than 2 versions have extracted text. Result is labeled 'derived' (computed by Bill Commons, not an off

Find bills with similar titles via deterministic trigram similarity, across jurisdictions. Labeled 'derived' -- not an official cross-reference or companion-bill designation.

Fetch vote event(s) with member-level (yes/no/other/absent) vote records. Provide vote_event_id for one vote, or bill_id for all recorded votes on that bill.

List upcoming (future-dated) legislative hearings/events, optionally filtered by jurisdiction and/or bill.

Full chronological legislative history for a bill: merged timeline of actions, version publications, and votes, plus related-bill links.

Compile a citation-ready evidence packet for a bill: full official record, legislative history timeline, votes with member-level detail, and hearings -- each explicitly labeled official vs. derived with source URLs.

Return the jurisdiction_coverage state-machine status for one state (abbreviation or name), or the full 51-jurisdiction coverage matrix if state is omitted.

List legislative sessions currently flagged active, optionally filtered by jurisdiction (two-letter state code or name).