# Orbonomy Fact Check Verify

> Orbonomy Fact Check Verify is a paid API for AI agents from api.orbonomy.xyz, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-14).

Verifies the truthfulness of a given claim in a specified language using automated fact-checking

## Facts

- Endpoint: POST https://api.orbonomy.xyz/api/factcheck/verify?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/orbonomy-fact-check-verify-eae2dee6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xgIJnTuAvwSGBDoegZ_eB

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-eae2dee6 -d '<json body>'
```

Example prompt: Can you fact-check this claim for me in English: 'The Eiffel Tower is the tallest structure in the world'?

## When to prefer this

Use this endpoint when you need to programmatically verify factual claims, detect misinformation, or validate statements before publishing content. Particularly useful for agents processing news, social media content, or user-submitted information where accuracy is critical. Best suited for single claim verification with language-specific processing.

## Known failure modes

- Missing required 'claim' field returns validation error
- Missing required 'lang' field returns validation error
- Unsupported language code may return an error or null result
- Payment failure via x402 protocol returns 402 status
- Malformed JSON body returns 400 bad request
- Ambiguous or very short claims may yield low-confidence results

## How this service works

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

## Output

Returns a JSON object with a success boolean indicating whether the verification request was processed, along with the fact-check result for the submitted claim.

## 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-eae2dee6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.orbonomy.xyz](https://www.zero.xyz/host/api.orbonomy.xyz/llms.txt)