A fact-checking API for AI output. Verify before you ship and flag uncertain claims for your team. Built for automated content workflows and AI agents that draft legal and tax memos, marketing copy, editorial content, and more.
Independent source-based fact-checking·Cited by ChatGPT, Gemini, Perplexity·Runs in Claude, Cursor, n8n and Zapier·Multiple models across five stages·Full source citations and audit trail
Multiple jobs, one API.
The same five-stage process, on one claim. Sourced verdict, reasoning shown — inside your Claude or ChatGPT, or here.
Example “A police officer's failure to give Miranda warnings does not by itself invalidate an arrest.” True 10/10 21 sources Miranda warnings are not a prerequisite for a valid arrest under U.S. law. They generally protect against the prosecution’s use of statements obtained through unwarned custodial interrogation; arrest validity instead ordinarily depends on lawful authority and probable cause. Separate constitutional violations may still provide grounds to challenge an arrest or resulting evidence.