Loupe: free citation lookup

legal.loupe/citation-lookup · v1.0.0 · productivity

Loupe: free citation lookup is healthy: it completed an MCP handshake in 1760 ms and exposes 2 tools.

Check if a US legal citation exists, names its case and has a valid pin cite; or find a case. Free.

Endpoint: https://loupe.legal/mcp-public (streamable-http)

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Facts

Users (last 30 days)0
HandshakeHealthy
Auth neededNone
Tool count2
Latency1760 ms
Last checked (UTC)2026-10-16T18:50:36.722Z

Health history

Checked (UTC)StatusLatencyError
2026-10-16T18:50:36.722ZHealthy1760
2026-10-15T12:25:21.979ZHealthy2432

Tools (2)

check_citationCheck one US legal citation, or a sentence holding a few: whether it exists in the sources Loupe checks, which case it is, and whether a pin cite falls inside the opinion. Give it exactly as written, with the case name and year if the document has them, because the commonest error is a real citation
search_casesSearch the case names in Loupe's index, or look up the case a citation names. Give the parties' names, and the year if known. A case missing from the results may still exist.