> ## Documentation Index
> Fetch the complete documentation index at: https://docs.factagora.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

> An introduction to Factagora, AI trust infrastructure for verifiable, source-backed information.

## What is Factagora?

Factagora is an **AI trust infrastructure** that reduces hallucinations in generative AI. Information is structured as **Factblocks**: each linked to a confidence score, source, and temporal context, and connected through the Temporal Knowledge Graph (TKG), so AI can rely on what is verifiable *right now*.

You add it on top of the stack you already run, whether that's any LLM, any vector database, or any RAG pipeline, as a grounding and verification layer. The result: answers that come back **current** (point-in-time, not stale), **explainable** (linked causes, not just matches), and **traceable** (sourced and confidence-scored).

The platform exposes its capabilities through two product lines:

* **Factagora Search API**: 6 APIs (Fact Search, Fact Checker, Evidence Finder, Deep Research, Timeseries, Causality Graph) for source-backed, fact-grounded retrieval.
* **Fingerprint**: content provenance via invisible, structure-based watermarking. Detects reuse even after rewriting or paraphrasing.

## Core Concepts

<CardGroup cols={3}>
  <Card title="Factagora Search API" icon="magnifying-glass-chart" href="/guides/factagora/search-api/overview">
    6 APIs that deliver source-backed answers, verify claims, surface evidence, synthesize research, and map timelines and causality.
  </Card>

  <Card title="Fingerprint" icon="fingerprint" href="/guides/factagora/fingerprint/overview">
    Embed invisible watermarks based on causal structure. Detect content reuse even after rewriting or translation.
  </Card>

  <Card title="Temporal Knowledge Graph (TKG)" icon="clock">
    Tracks both semantic relations and how those relations evolve over time, so AI knows whether a fact is still true.
  </Card>
</CardGroup>

## How It Works

1. **Information is structured**: content is decomposed into Factblocks, each with a source, confidence score, and timestamp.
2. **Facts are connected**: the Temporal Knowledge Graph links facts by both semantic relation and time.
3. **APIs serve verifiable answers**: Search API returns source-backed results; Fingerprint detects content reuse.
4. **AI consumes only what is verifiable**: each result carries the evidence trail needed for trust and explainability.

## Get started

<CardGroup cols={2}>
  <Card title="Quick start" icon="rocket" href="/guides/factagora/quick-start">
    Make your first authenticated request in minutes.
  </Card>

  <Card title="API Reference" icon="code" href="/api-reference/introduction">
    Full endpoint specs and response schemas.
  </Card>
</CardGroup>