# ScrapFly Claim Verification API

> ScrapFly Claim Verification API is a paid API for AI agents from scrapfly.vercel.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-24).

Verifies a factual claim by checking it against multiple sources and returning a truth assessment

## Facts

- Endpoint: POST https://scrapfly.vercel.app/api/crawl/verify?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-24
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/scrapfly-claim-verification-api-7820bd67
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__4ppASW4AziRSiqF5FSFp

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability scrapfly-claim-verification-api-7820bd67 -d '<json body>'
```

Example prompt: Can you fact-check this claim for me using 5 sources: 'The Eiffel Tower is taller than the Statue of Liberty'?

## When to prefer this

Use this endpoint when you need automated, multi-source fact-checking of a specific textual claim — especially for misinformation detection, content moderation, or journalistic verification workflows. Prefer this over general web search when you need a structured true/false verdict with supporting evidence rather than raw search results.

## Known failure modes

- Claim text is empty or too vague to verify — returns success: false
- Sources count is set to 0 or negative — may return error or unreliable result
- Claim relates to very recent events not indexed by sources — limited evidence returned
- Network timeout when fetching sources — success: false with error detail
- Ambiguous or double-barreled claims may produce inconclusive results

## How this service works

69 endpoints for data, content generation, and web scraping. Pay per request via x402 on Base chain.

## Output

Returns a JSON object with a 'success' boolean indicating whether the verification completed, plus a 'data' object containing the verdict on the claim and supporting evidence from the checked sources.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "claim"
 ],
 "properties": {
  "claim": {
   "type": "string",
   "description": "claim"
  },
  "sources": {
   "type": "number",
   "description": "sources"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "success"
 ],
 "properties": {
  "data": {
   "type": "object"
  },
  "success": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/scrapfly-claim-verification-api-7820bd67/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from scrapfly.vercel.app](https://www.zero.xyz/host/scrapfly.vercel.app/llms.txt)