MCP server

Court Listener

io.github.pipeworx-io/court-listener

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

CourtListener MCP — Free Law Project's CourtListener API (v4).

Website Source

At a glance

Type

MCP server

Publisher

pipeworx.io (verified by the MCP Registry)

Status

Working at last check

Tools

53

Token cost

About 29,597 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http court-listener https://gateway.pipeworx.io/court-listener/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.court-listener]
url = "https://gateway.pipeworx.io/court-listener/mcp"

Gemini CLI

{"mcpServers":{"court-listener":{"httpUrl":"https://gateway.pipeworx.io/court-listener/mcp"}}}

Cursor

{"mcpServers":{"court-listener":{"url":"https://gateway.pipeworx.io/court-listener/mcp"}}}

VS Code

{"servers":{"court-listener":{"type":"http","url":"https://gateway.pipeworx.io/court-listener/mcp"}}}

Antigravity

agy mcp add court-listener https://gateway.pipeworx.io/court-listener/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"court-listener","server_url":"https://gateway.pipeworx.io/court-listener/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"court-listener","server_url":"https://gateway.pipeworx.io/court-listener/mcp"}

Tools

• find_case ~200 tokens
  Find a US court case BY NAME and get its citations, filing date, judges and how often it has been cited. Searches 8.3 million opinions across 3,361 courts — no API key, no rate limit. Ranked by citation count, so the leading case for a name comes first. Use this when you know what the case is CALLED
• find_case_patents ~528 tokens
  Patent litigation cross-reference: a named US district-court case to its docket, its asserted patent NUMBERS, and its defendants. Pass a case name (e.g. "TurboCode LLC v. Quectel Wireless Solutions") or a docket_id already known from search_dockets. Patent numbers come ONLY from text CourtListener/R
• get_docket_filing ~198 tokens
  Get one filing from a US federal court docket by its document id — the entry description as the clerk wrote it, the filing date, page count, the docket_id it belongs to, a text excerpt where the document has been scanned, and a direct PDF link. Use after list_docket_filings or search_court_filings t
• get_opinion ~175 tokens
  Get the FULL TEXT of a US court opinion by its CourtListener opinion ID (the opinion_id returned by search_opinions). Covers 8.3 million opinions, 71% state case law — no API key needed. Returns the opinion text, the case name, the real filing date, author, citation count, whether the text came from
• list_case_opinions ~144 tokens
  List every opinion filed in one case (cluster) — majority, concurrences and dissents — with the opinion_id needed to read each one via get_opinion. No API key, no rate limit. Use after find_case or lookup_citation to get from a case to its readable text.
• list_docket_filings ~300 tokens
  List the filings on a US FEDERAL district or bankruptcy court docket — every complaint, motion, order and exhibit RECAP has recorded for that case, in filing order, with the document id, entry number, filing date, page count and a link to the PDF. This is the docket sheet: what was filed, when, and
• lookup_citation ~157 tokens
  Resolve a US reporter citation such as "410 U.S. 113" or "347 U.S. 483" to the case it refers to, with name, filing date, judges and citation count. No API key, no rate limit. Use when a brief, opinion or article cites a case by reporter and you need to know which case that is.
• search_case_law ~329 tokens
  Search the FULL TEXT of US court opinions by subject matter — "qualified immunity for police dogs", "securities fraud scienter pleading standard". Searches the full text of CourtListener opinions with no API key and no rate limit, and returns the most relevant opinion ids, a relevance score and how
• search_court_filings ~313 tokens
  Search the TEXT of US federal court filings — complaints, motions, briefs, orders and exhibits from PACER as archived in RECAP, roughly 9.7 million documents. Use this to find what was actually argued or ordered in litigation ("trade secret misappropriation", a company named as a defendant, a specif
• search_dockets ~229 tokens
  Search US court dockets by keyword. Covers PACER and RECAP archives. Each result carries docket_id, case name, court, filing and termination dates, docket number, nature of suit, the cause of action, the assigned judge, and the PACER case id.
• search_opinions ~721 tokens
  Search US court opinions from CourtListener — 8.3 million of them, with no API key and no rate limit. Covers the UNITED STATES SUPREME COURT (SCOTUS), the federal circuit courts of appeals, the federal district courts, and the state courts (71% of the corpus is state case law). THE tool for what a U

Browse

• GitHub tools
• PDF tools
• OCR (text from images)
• Legal research
• GitHub and code hosting

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