OpenCase

Check whether a quotation appears word for word in the full text of one authority, identified by citation or OpenCase legalContentId. Ellipses and bracketed alterations are honored. This is a plain text comparison, not an AI judgment.

check_quote

Is this case still good law? Takes one case, such as "550 U.S. 544". A pending, provisional, preliminary, or stale result is not a clearance. To see which decisions cited it and how, use get_case_treatments.

check_case_validity

Find the citations in a text and their positions, without looking any of them up. Use it to list what a document cites. To check whether they are real, use verify_citations_in_text.

detect_legal_citations

Retrieve one numbered CourtListener RECAP docket entry and any contributed document text. RECAP may contain filing metadata without document text.

get_docket_filing

Which later decisions cited one case, such as "550 U.S. 544", and how each treated it. For negative treatment, pass treatmentClasses ["negative", "cautionary"]: negative is overruled, reversed, vacated, or abrogated; cautionary is questioned, superseded, or declined to follow. Null treatment fields mean the citing reference has not been analyzed. For the case-level good-law status, use check_case_validity.

get_case_treatments

Read the text of one authority, by citation (such as "Fed. R. Evid. 702") or by legalContentId. To check whether citations exist without reading them, use resolve_legal_citations.

get_legal_authority

Research a legal question and return a cited answer using public legal sources.

research_legal_question

Check a list of separate citation strings, such as ["410 U.S. 113", "42 U.S.C. § 1983"]. For citations inside prose, use verify_citations_in_text. A bare case name with no reporter cite comes back as not checked.

resolve_legal_citations

Research law relevant to a supplied legal document and return grounded findings, authorities, and proposed edits. Proposed edits are not applied.

review_document_against_law

Search CourtListener RECAP for federal PACER dockets by party name or docket number. Ambiguous same-number matches are returned for court disambiguation.

search_dockets