GLO Law

Reliability

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How to connect

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "glo-law": {
      "type": "http",
      "url": "https://mcp.glolaw.org/mcp"
    }
  }
}

17 tools

• search

  Case-name metadata search over the local CourtListener mirror. Punctuation-insensitive trigram match on the case name ("Brown v board of education" matches "Brown v. Board of Education"). Returns cluster rows: id, case_name, case_name_short, date_filed, precedential_status…

• fts

  Keyword full-text search (BM25) over opinion body text in the local mirror. Keyword, not concept: matches the exact words given (case-insensitive) with no stemming ("petition" does not match "petitions"); all words must appear; "double quotes" mark an exact phrase. A case that…

• semantic_search

  Semantic (vector) search over embedded opinion chunks: finds cases by concept or plain-language description when there is no fixed term of art. Returns one row per case: opinion_id, cluster_id, metadata, matched_chunk, distance, similarity, matched_text (the passage the case…

• similar

  Given one opinion id, returns other opinions whose wording overlaps it, ranked by keyword match (BM25 more-like-this). Keyword overlap only: not a finding that the neighbors address the same issue, reach the same result or remain good law, and not complete. The seed opinion and…

• citation

  Resolves a reporter citation "<volume> <reporter> <page>" (e.g. 347 U.S. 483) to the matching case cluster(s) in the local mirror, optionally with member opinions and parallel citations. A 404 means the citation is not in this mirror, not that the case does not exist. A resolved…

• cluster

  Full case (cluster) detail by cluster id: cluster metadata, member opinions and parallel citations. Metadata only; the opinion tool returns full text. Every response carries a "note" stating that response’s source and coverage limits.

• opinion

  Full text of one opinion by opinion id, plus metadata. The text is the best stored text extracted from the mirror (HTML stripped; body_source names the extraction source and fallback_used flags a lower-precedence one), bounded to 200k characters with truncated and text_available…

• citations

  Given one opinion id, lists the cases it cites (direction=authorities) or the cases that cite it (direction=cited_by). Textual reference only: an edge means one opinion’s text names the other; it is not treatment, agreement, validity or "good law", and not a Shepard’s or KeyCite…

• parentheticals

  Given one opinion id, returns the one-line parentheticals later courts wrote about that case, verbatim. A parenthetical is the later court’s own characterisation: not a holding of the described case, not a summary written by this service, and not treatment, validity or "good…

• treatment

  Later courts, in their own words, reporting that one case was overruled, abrogated, superseded, reversed or vacated. Takes a cluster id (the case-record id), not an opinion id. Every row carries the citing court’s own sentence, cut from its stored text; the label is a filter…

• brief_check

  Checks the case citations in a document the user supplies (a draft filing, brief or motion) against this collection and court-reported negative history, showing which cited cases to read before filing. Nothing is ever cleared: there is no pass mark or "verified" state. Per…

• statute

  Exact lookup of one statute section or one regulation section by citation, in a point-in-time snapshot of published law. Returns the text verbatim with jurisdiction, corpus, citation, heading, path, source_url, as_of, act_status, last_amended_year and repaired. Enacted text…

• statute_search

  Keyword (BM25) search over the body text of statute sections and, in the default source, Kansas administrative regulations, in the same snapshot as the statute tool; source=<code> searches one regulation source alone. Without jurisdiction=, results mix states: on 6,852 benchmark…

• statute_citing

  Lists the opinions whose text cites one U.S. Code section. Federal only: no state statute-citation links exist, and a state citation returns a visible error. An entry means the opinion’s text names the section; it does not say how the court treated it and carries no treatment…

• corrections_policy

  Internal policies of a state department of corrections, or of the Federal Bureau of Prisons (state="bop", federal), as the department posts them, by number or by keyword search (query; no stemming). Not law: not statutes, regulations or court rules (a Maine policy the department…

• deadline

  Counts a deadline from a date the user gives, under a rule whose text is in GLO’s mirror, and returns every counting step beside that text. Counted: K.S.A. 60-206 (Kansas civil procedure; a period in days the user supplies from the rule or order that sets it, forward or…

• sources

  Returns GLO’s coverage statements as text, so each tool’s and each source’s limits can be read on request. With a tool name alone: that tool’s full statement of coverage, measured limits and field meanings ("server" gives the full server overview). With a source or state code…

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