CourtListener MCP Server

https://courtlistener-mcp.vaquill.ai/mcp/

answers a handshake

Registry name: io.github.Vaquill-AI/courtlistener-mcp
Reports itself as: CourtListener MCP Server 3.4.3
Protocol version: 2025-06-18
Transport: streamable-http
HTTP status: 200
Latency: 828 ms
Tools: 34
Checked: 2026-09-06T03:03:02Z

Tools it reports

status
search_opinions
search_dockets
search_dockets_with_documents
search_recap_documents
search_audio
search_people
get_opinion
get_docket
get_audio
get_cluster
get_person
get_court
citation_lookup_citation
citation_batch_lookup_citations
citation_verify_citation_format
citation_parse_citation_with_citeurl
citation_extract_citations_from_text
citation_enhanced_citation_lookup
ecfr_list_titles
ecfr_get_title_versions
ecfr_get_title_structure
ecfr_get_ancestry
ecfr_get_source_xml
ecfr_list_agencies
ecfr_list_all_corrections
ecfr_list_corrections_by_title
ecfr_search_regulations
ecfr_get_search_count
ecfr_get_search_summary
ecfr_get_title_search_counts
ecfr_get_daily_search_counts
ecfr_get_hierarchy_search_counts
ecfr_get_search_suggestions

Check it yourself

curl -s -X POST https://courtlistener-mcp.vaquill.ai/mcp/ \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-06-18","capabilities":{},"clientInfo":{"name":"you","version":"0"}}}'