# Orbonomy Fact-Check Verify

> Orbonomy Fact-Check Verify is a paid API for AI agents from orbonomy.xyz, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).

Verifies a text claim for factual accuracy, returning a structured result indicating whether the claim is supported or disputed

## Facts

- Endpoint: POST https://orbonomy.xyz/api/factcheck/verify
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/orbonomy-fact-check-verify-3d40d136
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8uygqlR8P9iIGMSIb7KQN

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 orbonomy-fact-check-verify-3d40d136 -d '<json body>'
```

Example prompt: Can you fact-check this claim for me in English: 'The Great Wall of China is visible from space with the naked eye'?

## When to prefer this

Use this endpoint when an AI agent needs to programmatically verify the factual accuracy of a natural language claim, especially within an automated pipeline that requires pay-per-use pricing via x402. Prefer this over manual search when you need a structured true/false signal on a specific statement in a supported language.

## Known failure modes

- Missing required 'claim' field returns an error
- Missing or unsupported 'lang' value may cause incorrect language processing or error
- Payment not provided or insufficient funds causes 402 Payment Required
- Ambiguous or very short claims may return low-confidence or inconclusive results
- Claim in a language that doesn't match the 'lang' parameter may degrade accuracy

## How this service works

50+ pay-per-call API endpoints across accommodation, AI, content, fact-checking, and data services. Powered by x402 protocol.

## Output

A JSON object with a boolean 'success' field indicating whether the API call succeeded, along with fact-check results about whether the submitted claim is accurate or disputed.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "lang",
  "claim"
 ],
 "properties": {
  "lang": {
   "type": "string"
  },
  "claim": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "success": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/orbonomy-fact-check-verify-3d40d136/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from orbonomy.xyz](https://www.zero.xyz/host/orbonomy.xyz/llms.txt)