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Overview

The Factagora API gives you programmatic access to the Factagora knowledge graph, a continuously updated database of fact-checked claims, predictions, evidence, and causal relationships extracted from global news and research sources. Call it from any language or framework, on top of the LLM and retrieval stack you already run. For what FactBlocks and the Temporal Knowledge Graph are, see What is Factagora?. For picking the right endpoint, see Choosing an API.

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Base URL

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Authentication

All Factagora endpoints are authenticated using API keys. Get your free API key.
You don’t need to create one to get started. A default API key is issued automatically the first time you sign in to Factagora. Visit Settings → API Keys to copy it or create additional keys.
API keys follow the format fa_.... See Authentication for details.

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Endpoints

Every endpoint is listed under Endpoints in the sidebar. Each page carries the full parameter list, the response fields, and cURL, Python, and TypeScript examples. If you are not sure which one you need, Choosing an API lines them all up by what they do and what they cost.

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Response Format

All responses are JSON. Successful responses return 200. Errors return 400 (validation) or 401 (authentication).
See Rate limits for per-key limits and the headers on every response.