# Orbonomy Fact-Check Search

> Orbonomy Fact-Check Search is a paid API for AI agents from orbonomy.xyz, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Searches and retrieves fact-check results for a given query, returning verified claim information with a configurable result limit.

## Facts

- Endpoint: POST https://orbonomy.xyz/api/factcheck/search
- Price: $0.05/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-search-e55aae83
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_V9O9BBuRiXXML8rU06av8

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-search-e55aae83 -d '<json body>'
```

Example prompt: Can you fact-check the claim 'vaccines cause autism' and return up to 5 verified results from fact-checking sources?

## When to prefer this

Use this endpoint when you need to programmatically search fact-checking databases for a specific claim, statement, or topic and want to retrieve a bounded set of verified results. Prefer this over general web search when the goal is specifically to surface authoritative fact-check verdicts rather than raw search results.

## Known failure modes

- Missing required 'query' or 'limit' field returns a validation error
- Empty query string may return zero results or an error
- Payment failure via x402 protocol results in 402 response before the endpoint is reached
- Overly broad or ambiguous queries may return low-relevance fact-checks
- Limit set too low may miss relevant results; no upper bound documented

## 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 and (presumably) an array of fact-check results matching the query, including verified claims, sources, and verdicts, limited to the specified number of results.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "limit",
  "query"
 ],
 "properties": {
  "limit": {
   "type": "integer"
  },
  "query": {
   "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-search-e55aae83/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)