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

# AI Fact Checker

> Fact-check content with citations and claim flags

# AI Fact Checker

Extract claims from content, verify them against sources, and provide citations.

```mermaid theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
flowchart LR
    A[Content] --> B[AI Fact Checker]
    B --> C[Claim Extraction]
    C --> D[Verification]
    D --> E[Cited Report]
    
    style A fill:#e1f5fe
    style E fill:#c8e6c9
```

## CLI Quickstart

```bash theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
praisonai recipe run ai-fact-checker \
  --input '{"content": "GPT-5 has 10 trillion parameters..."}' \
  --json
```

## Use in Your App (SDK)

```python theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
import sys
sys.path.insert(0, 'agent_recipes/templates/ai-fact-checker')
from tools import extract_claims, verify_claim, fact_check_content

# Full fact-check
result = fact_check_content("GPT-5 has 10 trillion parameters...")

# Extract claims only
claims = extract_claims("Your content here...")

# Verify single claim
verification = verify_claim("GPT-5 has 10 trillion parameters")
```

## Input Schema

```json theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
{
  "type": "object",
  "properties": {
    "content": {"type": "string"},
    "include_citations": {"type": "boolean", "default": true}
  }
}
```

## Output Schema

```json theme={"theme":{"light":"vitesse-light","dark":"vitesse-dark"}}
{
  "claims": [
    {
      "claim": "GPT-5 has 10 trillion parameters",
      "status": "unverified",
      "confidence": 0.3,
      "citations": [],
      "flag": "needs_verification"
    }
  ],
  "overall_accuracy": 0.7
}
```

## Claim Statuses

| Status          | Description              |
| --------------- | ------------------------ |
| verified        | Confirmed with citations |
| unverified      | Cannot confirm           |
| false           | Contradicted by sources  |
| partially\_true | Some aspects verified    |

## Environment Variables

| Variable         | Required | Description                 |
| ---------------- | -------- | --------------------------- |
| OPENAI\_API\_KEY | Yes      | For claim extraction        |
| TAVILY\_API\_KEY | Optional | For web search verification |

## Related Tools

* [AI Script Writer](/docs/examples/agent-recipes/creator-suite/ai-script-writer)
* [AI Context Enricher](/docs/examples/agent-recipes/creator-suite/ai-context-enricher)