CourtListener Legal Opinions & Case Law API

CourtListener legal opinions and case law API for judicial decisions, court opinions, citations, judges, dockets, precedent research, legal research API, case law search, litigation analysis, and opinion document discovery. Search by full text, court, date, status, exact citation, or docket number. Returns source-linked opinion records and bounded evidence. CourtListener is a non-governmental public archive; results are not official court copies, legal advice, Shepardization or KeyCite treatment, identity verification, or proof an opinion remains controlling law.