Deterministic citation verification
The judge will check your citations. Check them first.
Citation Safe verifies every cite in your filing against the primary source — the case exists, the quote is in it, it supports your point. Deterministic checks. Public error rate.
A real, correctly quoted case
Courts keep sanctioning attorneys over AI-invented citations — the record fine is $110,204 (D. Oregon, March 2026) — Couvrette v. Wisnovsky. Every tracked case is public at /sanctions-database.
3 briefs free every month, no card required · Paid from $12/mo
Not legal advice. Citation Safe™ is a verification workflow tool — you and your counsel remain responsible for reviewing every result before filing.
Verify our claims
The Auto-Refund Guarantee
If we mark a citation VERIFIED and we are wrong, that check is refunded automatically, no negotiation.
No dispute committee, no appeal form. File the dispute from your report and a fault-confirming re-check triggers the refund. Full contract at /refund.
The $10,000 Sanctions Guarantee
If a citation we mark VERIFIED gets you sanctioned as fabricated, we pay $10,000. Not insurance; a capped contractual warranty on paid tiers. Full terms at /sanctions-guarantee.
What the engine does
Existence is a database lookup, not an opinion.
Citations are checked against CourtListener's corpus of real opinions with deterministic code. Code that looks things up doesn't hallucinate.
Three honest verdicts.
VERIFIED, UNCONFIRMED, or NOT FOUND — per citation, per layer, with source links and timestamps. We show our work; you make the call.
Our accuracy is public.
Live False-Verify Rate, dispute counts, and coverage map at /quality. No legal-tech vendor publishes this. That is the point.
Works where you work.
Web today. Word add-in available today. Claude, ChatGPT, and any MCP client ship in the coming weeks.
Process
How it works
Upload or paste.
PDF, DOCX, or raw text. We extract every citation automatically.
Three-layer check.
Existence against court records, quote against the opinion's actual text, proposition support with a confidence score. Layers 1-2 in production today; Layer 3 (proposition support) is eval-published and rolling out in stages -- live at /quality.
File with receipts.
A per-citation report with sources, timestamps, and verdicts you can keep with the filing.
FAQ
Frequently asked
Is this legal advice?+
No. Citation Safe is a verification tool. It tells you what we found in primary sources; decisions about your filing are yours and your counsel's. No attorney-client relationship is created.
What does "UNCONFIRMED" mean?+
We could not confirm the citation in the sources we checked as of the timestamp shown. It may be outside our coverage (see the coverage map at /quality) — it does not automatically mean the case is fake. We tell you exactly which sources we checked.
How accurate is it?+
We never stamp VERIFIED on a wrong citation. Layer 2 (quote-match) runs at a 0% false-verify rate across our 144-citation eval set — meaning when we say VERIFIED, we've never been wrong about a quote. Our Layer 2 coverage — the share of citations we can score at all — is 86.1% (159 citations tested, 15 stayed source-unavailable and were reported separately, never guessed either way). Layer 1 (existence) is 100% accuracy, 0% false-verify across 176 citations. Layer 3 (proposition support) is eval-published at 100% on its held-out set and rolling out to production in stages. Every number is live and dated at /quality — nothing on this page is a projection. See /methodology for the full breakdown. If we stamp VERIFIED on a paid check and we're wrong, that verification is refunded automatically — full policy at /refund.
Is my document confidential?+
By default we keep only citation metadata and a cryptographic hash — not your document text. Document history is opt-in. Do not submit information you are not permitted to share; see our Terms.
What's free?+
3 document verifications per month, no card required. Free tier runs the existence and quote layers. Paid tiers add proposition-support analysis (Layer 3 — built and eval-published, rolling out in stages), higher volumes, and priority processing.
How is this different from Casetext or Clearbrief?+
Those are research and drafting platforms. Citation Safe does one thing — verifies that what you cited is real and honest — and publishes its own error rate publicly. We compete on a number you can inspect, not a feature list.
Also available
- Citation Safe for Tax — IRC sections, Treasury Regulations, and Tax Court citations
- Citation Safe for Medical — Medical literature citations — PubMed, Crossref, ClinicalTrials.gov, with retraction flagging
- Citation Safe for Government Contracts — FAR, DFARS, GAO bid-protest, and Federal Circuit/COFC citations
Need more than one? See the Argus Verification Suite All-Access ($99/mo, all four verticals bundled).