# Claim Verify

> Claim Verify is a paid API for AI agents from claim-verify.agentutil.net, paid per call via x402, $0.001000/call, status unknown (last checked 2026-09-14).

Verifies factual claims against live data to confirm accuracy before using them in responses, calculations, or decisions

## Facts

- Endpoint: POST https://claim-verify.agentutil.net/v1/skill
- Price: $0.001000/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/claim-verify-agentutil-net-c5d16eb4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xwD9tiRT18hcow60xnXyf

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 claim-verify-agentutil-net-c5d16eb4 -d '<json body>'
```

Example prompt: Before I use this in my answer, can you verify whether the claim 'the Eiffel Tower is 330 meters tall' is actually accurate according to live data?

## When to prefer this

Use this endpoint when an AI agent needs to confirm the factual accuracy of a specific claim before incorporating it into a response, calculation, report, or decision — especially when the cost of acting on incorrect information is high. Prefer this over general search when you need a binary or scored verification result rather than raw search results.

## Known failure modes

- Ambiguous or poorly formed claim may result in inconclusive verification
- Live data sources unavailable may cause lookup failure
- Claim too subjective or opinion-based to verify factually
- Rate limits or payment failure may block the request
- Highly niche or obscure claims may lack sufficient data to verify

## How this service works

Verify factual claims against live data before using them in responses, calculations, or decisions.

## Output

Returns a verification result indicating whether the submitted factual claim is accurate or inaccurate, potentially including supporting evidence, a confidence score, and relevant sourced data used to assess the claim.

## Example request

```json
{
 "name": "claim-verify"
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "name": {
   "enum": [
    "claim-verify"
   ],
   "type": "string",
   "description": "Skill name"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/claim-verify-agentutil-net-c5d16eb4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from claim-verify.agentutil.net](https://www.zero.xyz/host/claim-verify.agentutil.net/llms.txt)