io.github.cyanheads/courtlistener-mcp-server
courtlistener-mcp-server
Search US court opinions, federal dockets, judges, citations, and oral arguments via CourtListener.
alive probed 2026-10-05 · HTTP 200
14tools
9.3ktokens in Claude Opus 5.5
9.5ktokens in Claude Code
4.7 %of a 200k context window
5.6ko200k_base estimate
365 msto initialize
106 msto list tools
- Endpoint
- https://courtlistener.caseyjhand.com/mcp (streamable-http)
- Host
- courtlistener.caseyjhand.com
- Protocol
- 2025-11-25
- Reports itself as
- courtlistener-mcp-server 0.7.3
- Capabilities
- logging, prompts, resources, tools
- Instructions
- 722 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-05. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/cyanheads/courtlistener-mcp-server
- Registry
- active, updated 2026-09-30 · registry entry
- Reachable
- 6 of the last 6 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| courtlistener_lookup_courts | 801 | 14 % |
| courtlistener_search_opinions | 597 | 11 % |
| courtlistener_get_citations | 485 | 9 % |
| courtlistener_lookup_citation | 455 | 8 % |
| courtlistener_search_financial_disclosures | 445 | 8 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-05 14:38 | alive | 365 ms | 14 | 9.3k | 5.6k |
| 2026-10-05 00:33 | alive | 223 ms | 14 | 5.6k | |
| 2026-10-04 10:04 | alive | 446 ms | 14 | 5.6k | |
| 2026-10-04 07:57 | alive | 365 ms | 14 | 5.6k | |
| 2026-10-03 20:37 | alive | 726 ms | 14 | 5.6k | |
| 2026-10-03 17:53 | alive | 632 ms | 14 | 5.6k |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.cyanheads/courtlistener-mcp-server)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.