Before your AI hallucinates,
Factagora verifies.
Trusted by forward-thinking teams
Factagora API
Semantic real-time news search
Search news by meaning, not keywords. Articles ranked by relevance and source credibility for accurate AI reasoning.
Word-by-word claim verification
Cross-check every claim in AI output against original sources. Flag what's verified, disputed, or unsubstantiated.
Automatic evidence retrieval
Rank supporting and opposing evidence by strength across papers, reports, and news sources.
Staged deep research pipeline
Decompose queries, gather multi-source evidence, cross-verify, and synthesize a final report.
Fact evolution tracking & trend detection
Track how claims shift over time. Quantify when facts changed to cut AI hallucination at the source.
Causal graph for conclusion validation
Auto-infer and visualize causal structures. See which premises support conclusions and where reasoning breaks down.
/ integrate in minutes
One API key.
Every endpoint.
Bearer auth, structured JSON responses, OpenAPI spec included. Works with any language or AI framework.
# Request
curl -X POST https://api.factagora.com/api/v1/fact-checker \
-H "Authorization: Bearer fct_..." \
-d '{"claim": "Sachin scored 100 ODI centuries"}'
# Response
{
"verdict": "PARTIALLY_TRUE",
"confidence": 0.81,
"summary": "Sachin scored 100 international centuries...",
"sources": [ 5 sources ]
}Get Started
Before your AI hallucinates,
Factagora verifies.
The only API built for factual verification. Contact us to get access.
