Court Listener
Server Details
CourtListener MCP — Free Law Project's CourtListener API (free, no auth required for basic access)
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- Status
- Unhealthy
- Last Tested
- Transport
- Streamable HTTP
- URL
- Repository
- pipeworx-io/mcp-court-listener
- GitHub Stars
- 0
- Server Listing
- court-listener
TDQS
Scored across 41 tools
Multiple overlapping clusters exist: ask_pipeworx, ask_pipeworx_beta, ask_pipeworx_grounded, and deep_research all act as general research routers, with beta explicitly matching ask_pipeworx today. Court search tools (search_opinions, search_case_law, find_case) also have blurry boundaries, and the polymarket family has several closely related betting tools. Descriptions help, but an agent could easily misselect.
All tool names are snake_case, but the naming pattern is mixed: some use verb_noun (find_case, get_opinion, search_dockets), while others are noun-first (entity_profile, bet_research, polymarket_arbitrage) or prefixed by product (pipeworx_, polymarket_, ai_visibility_). It is readable but not a predictable single convention.
41 tools is far beyond the typical 3-15 sweet spot and exceeds the 25+ threshold for 'too many'. The set spans many unrelated domains (legal research, prediction markets, npm dependencies, AI visibility, llms.txt generation, memory, subscriptions), making the server heavy and unfocused.
For the apparent legal research domain, the surface covers opinion search/read, citation lookup, docket search, and filing retrieval, but notable gaps remain (no court/judge metadata lookup, no oral arguments, no citation graph). The many non-legal tools do not fill those gaps and dilute the overall set.
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
2 tool updates
- Changed
bet_research2 fields changed- changed
Input schema / examplesPrevious value: -[ - { - "market": "when-will-bitcoin-hit-150k" - }, - { - "market": "https://polymarket.com/event/when-will-bitcoin-hit-150k" - } -]New value: +[ + { + "market": "will-kristi-noem-win-the-2028-republican-presidential-nomination" + }, + { + "market": "https://polymarket.com/event/will-kristi-noem-win-the-2028-republican-presidential-nomination" + } +] - changed
Input schema / properties / market / descriptionPrevious value: -"Polymarket slug (\"when-will-bitcoin-hit-150k\"), full URL (\"https://polymarket.com/event/...\"), or question text (\"Will Bitcoin hit $150k?\"). Dated slugs stop resolving once they settle — Polymarket de-indexes resolved markets — so prefer an undated one."New value: +"Polymarket slug (\"will-kristi-noem-win-the-2028-republican-presidential-nomination\"), full URL (\"https://polymarket.com/event/...\"), or question text (\"Will Bitcoin hit $150k?\"). Dated slugs stop resolving once they settle — Polymarket de-indexes resolved markets — so prefer an undated one."
- Changed
polymarket_kalshi_spread1 field changed- changed
Input schema / examplesPrevious value: -[ - { - "topic": "fed" - }, - { - "topic": "btc" - } -]New value: +[ + { + "topic": "fed" + }, + { + "topic": "btc" + }, + { + "topic": "bitcoin" + }, + { + "topic": "fed rate decision" + } +]
2 tool updates
- Changed
bet_research2 fields changed- changed
Input schema / examplesPrevious value: -[ - { - "market": "will-bitcoin-reach-100k-in-july-2026" - }, - { - "market": "https://polymarket.com/event/will-bitcoin-hit-150k-by-june-30-2026" - } -]New value: +[ + { + "market": "when-will-bitcoin-hit-150k" + }, + { + "market": "https://polymarket.com/event/when-will-bitcoin-hit-150k" + } +] - changed
Input schema / properties / market / descriptionPrevious value: -"Polymarket slug (\"will-bitcoin-hit-150k-by-june-30-2026\"), full URL (\"https://polymarket.com/event/...\"), or question text (\"Will Bitcoin hit $150k by June 30?\")"New value: +"Polymarket slug (\"when-will-bitcoin-hit-150k\"), full URL (\"https://polymarket.com/event/...\"), or question text (\"Will Bitcoin hit $150k?\"). Dated slugs stop resolving once they settle — Polymarket de-indexes resolved markets — so prefer an undated one."
- Changed
polymarket_kalshi_spread1 field changed- changed
Input schema / properties / topic / descriptionPrevious value: -"Pre-mapped: fed | btc | cpi | gdp | sp500 | recession | next_pope | next_uk_pm | next_israel_pm | 2028_president"New value: +"Subject to compare. Canonical keys: fed | btc | eth | cpi | gdp | sp500 | recession | next_pope | next_uk_pm | next_israel_pm | 2028_president — but aliases and keywords resolve too (\"bitcoin\", \"fed rate decision\", \"ethereum\", \"inflation\", \"s&p 500\", \"us recession\", \"next pope\", \"2028 election\"). Check resolution.topic_matched_by in the response: \"exact\"/\"alias\" is a curated pairing, \"phrase\"/\"token\" is a keyword guess."
Related MCP Connectors
MCP for CourtListener: US federal and state opinions, dockets, judges, plus eCFR regulations.
Federal Register MCP — US Federal Register API (free, no auth)
PACER Case Locator (PCL) MCP — live US federal court case & party search on the
GovTrack MCP — federal US Congress data (free, no auth)
Related MCP Servers
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