Verify legal case citations against real court records; flag fake/hallucinated cites.
Quick Install
Automated & IDE SetupCopy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.
One-click editor setup isn’t available for this listing yet — we don’t have a confirmed install command, and we’d rather show nothing than point your editor at the wrong package or host. Follow the project’s own setup instructions, linked above.
Manual Client & Custom JSON ConfigExpand JSON ▾
No confirmed setup config for this listing yet. We only publish a config block when the install details come from the project itself — its README, its docs, or a verified owner. We haven’t found those for legalcite, and we’d rather show nothing than a guess you’d paste into your client. Follow the project’s own setup instructions for the current steps.
Documentation Overview
LegalCite
Stop your AI from citing fake cases. LegalCite checks every case citation in legal text against real court records (CourtListener) and flags hallucinated/fake or misattributed cites. A REST API + an MCP server.
- Live: https://legalcite-one.vercel.app
- Verify API:
GET /api/verify?text=<paragraph>(or?citation="410 U.S. 113"; alsoPOST {text}) - MCP:
verify_citations(text)→ npmlegalcite-mcp - Data: CourtListener (Free Law Project) — free public U.S. court records.
Verdicts
| verdict | meaning |
|---|---|
real | the case exists and (if named) the name matches |
not-found | no such case — likely hallucinated |
mismatch | citation is real, but the case name in the text is wrong |
How it resolves
- Token-free (default): reporter-aware regex extracts citations → each resolved via CourtListener's public
/c/{reporter}/{vol}/{page}/finder (redirects to the opinion when real, 404 when not). - Token mode (optional): set
COURTLISTENER_TOKEN(free) → uses CourtListener'scitation-lookupendpoint (Eyecite extraction + full metadata).
It never fabricates — an unresolved citation is reported not-found, never invented.
Layout
Config (Vercel env — all optional for the MVP)
COURTLISTENER_TOKEN— free; enables richer citation-lookup + metadata.REDIS_URL— Upstash; enables hard daily quota + caching (fail-open without it).STRIPE_SECRET_KEY/STRIPE_PRICE_ID/STRIPE_WEBHOOK_SECRET— Pro billing.
Pricing
Free: 20 checks/day by IP. Pro: 2,000/day, $19/mo, 7-day trial.
Not legal advice. Verifies citation existence/metadata only — not legal correctness or good-law status.
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Frequently Asked Questions about Legalcite
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