Factagora

An API layer that verifies AI-generated claims against original sources to prevent hallucinations and provides confidence scores with citations and supporting and opposing evidence. It is for developers, data teams, and IT teams in businesses building applications on LLMs, vector databases, or RAG stacks. It is delivered as a single API with three endpoints that sits on top of existing stacks without migration or retraining and returns structured JSON.

Key features

• Fact search with ranked cited results
• Claim verification with confidence verdict
• Evidence finder with ranked supporting and opposing evidence
• Versioned and timestamped facts
• Causal reasoning on claims
• Bearer auth with structured JSON responses
• OpenAPI spec included
• Works with any language and framework