An API that catches what your LLM confidently got wrong
AI is advancing fast, but the hallucination problem persists. Most products have no verification layer. They just hope the model gets it right. Factagora API gives you programmatic access to a knowledge graph of fact-checked claims, evidence, and causal relationships extracted from global news and research sources. 6 endpoints: News Search, Fact Checker, Evidence Finder, Deep Research, Timeseries, Causality Graph. Start with 100 free credits, no credit card required. Happy to answer questions about how we built it.
An API that catches what your LLM confidently got wrong launched on April 9, 2026 with 5 votes, #1,846 of 21,248 launches that month and more than 75% of that year's launches. The site was not reachable when checked in September 2026.
What it does
Factagora API lets you ground your AI in verified facts, evidence, and causal reasoning using just one API key. News Search, Fact Checker, Evidence Finder, Deep Research, Timeseries, Causality Graph. Six purpose-built endpoints, structured JSON responses.
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