# Orbonomy Fact-Check Search

> Orbonomy Fact-Check Search is a paid API for AI agents from app.orbonomy.xyz, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Searches for fact-check results and verdicts related to a given query, returning verified claims and their assessments.

## Facts

- Endpoint: POST https://app.orbonomy.xyz/api/factcheck/search
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/orbonomy-fact-check-search-25fc2880
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TLs7RRT_Gm9MxqaCkkx5W

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-25fc2880 -d '<json body>'
```

Example prompt: Search Orbonomy's fact-check database for claims about 'COVID vaccines cause infertility' and give me the top 5 results so I can see what fact-checkers have found.

## When to prefer this

Use this endpoint when you need to quickly look up whether a specific claim, news story, or statement has been fact-checked and what the verdict is. Ideal for misinformation detection workflows, content moderation pipelines, or journalism research. Prefer this over general web search when you specifically want structured fact-checking verdicts rather than raw news articles.

## Known failure modes

- Query string missing or empty — returns validation error
- Limit not provided — returns 400 bad request
- No fact-check results found for the query — returns empty results array
- Payment not made or x402 protocol error — returns 402 Payment Required
- Server-side error fetching fact-check data — returns 500 error with success: false

## 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 success flag and a collection of fact-check search results related to the query, including verified claims, verdicts (true/false/misleading), and potentially source references — up to the specified limit.

## 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-25fc2880/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from app.orbonomy.xyz](https://www.zero.xyz/host/app.orbonomy.xyz/llms.txt)