Courtlistener MCP Server

by courtlistener Your server? Claim it

answering

Courtlistener is answering right now. Last checked 9 min ago.

Uptime history 48 days of history · worst day 98%

48 days agonow

100.0%

Uptime 24h

91 of 91 checks

—

Tools

hidden behind auth

520 ms

Response time

average over 24h

OAuth sign-in

Access

streamable-http

Nothing serious here today

Today is the operative word: we check Courtlistener every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 9 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add mcp --transport http https://mcp.courtlistener.com/

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://mcp.courtlistener.com/"
    }
  }
}

~/.codex/config.toml

[mcp_servers.mcp]
url = "https://mcp.courtlistener.com/"

.cursor/mcp.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://mcp.courtlistener.com/"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "mcp": {
      "url": "https://mcp.courtlistener.com/"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, and it signs you in through your browser: there is no API key to paste.

Endpoints

URL	Transport	State	Latency	Checked
https://mcp.courtlistener.com/	streamable-http	sign-in	571 ms	9 min ago

Alternatives to Courtlistener

same job, measured the same way

Search US federal and state court records through CourtListener and the RECAP archive

answering

Court Listener

by pipeworx-io

CourtListener MCP — Free Law Project's CourtListener API (free, no auth required for basic access)

41 tools answering

Courtlistener MCP Server

by cyanheads

Search US court opinions, federal dockets, judges, citations, and oral arguments via CourtListener.

198 installs/wk 14 tools answering

CourtListener

by vaquill-ai

MCP for CourtListener: US federal and state opinions, dockets, judges, plus eCFR regulations.

ListenBrainz MCP.

Andreani — Argentine courier and logistics

20 installs/wk local only

MCP Coordinadora

by codespar

Coordinadora — Colombian courier and logistics

20 installs/wk local only

Courtlistener — questions

Answers built from our own checks of this server.

Why is there no tool list for Courtlistener?

The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 100.0% of checks in the last 24 hours got a reply.

Is Courtlistener working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 520 ms. The bar chart above shows every period we have measured.

How do I connect Courtlistener?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You sign in through your browser once and the client keeps the session: no key to copy, and it refuses anonymous clients.

How do you sign in to Courtlistener?

No API key is involved. Courtlistener answers our knock with an OAuth challenge, so you authorise it once in your browser and the client keeps the session. That is also why we see no tool list: it will not describe itself to an anonymous client, and that is the server working as intended, not a fault.

How fast is Courtlistener?

It answers our handshake in 520 ms on average, which is faster than 27% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.