# Veritas Multi-Source Fact Verification API

> Veritas Multi-Source Fact Verification API is a paid API for AI agents from veritas.orbonomy.xyz, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Verifies claims and queries against multiple sources to assess factual accuracy

## Facts

- Endpoint: POST https://veritas.orbonomy.xyz/api/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/veritas-multi-source-fact-verification-api-5c8a21b1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cie5wxaAlYUI5VZe9bNN_

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 veritas-multi-source-fact-verification-api-5c8a21b1 -d '<json body>'
```

Example prompt: Can you fact-check the claim 'The Great Wall of China is visible from space' using Veritas and return up to 5 verified sources?

## When to prefer this

Choose this endpoint when you need to verify factual claims, debunk misinformation, or cross-reference statements against multiple authoritative sources. Particularly useful for journalism, research assistance, or any workflow requiring automated fact-checking rather than simple search or lookup.

## Known failure modes

- Query string missing — returns 400 bad request
- No sources found for obscure or highly specific claims — success true but empty entities array
- Network timeout or upstream source unavailability — success false
- Invalid limit parameter type — schema validation error
- Payment not processed — 402 Payment Required

## How this service works

Multi-source fact verification API

## Output

Returns a JSON object with a success boolean and an array of entities representing verified facts, sources, or supporting evidence gathered from multiple sources related to the query.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "query"
 ],
 "properties": {
  "limit": {
   "type": "integer"
  },
  "query": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "success"
 ],
 "properties": {
  "success": {
   "type": "boolean"
  },
  "entities": {
   "type": "array"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/veritas-multi-source-fact-verification-api-5c8a21b1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from veritas.orbonomy.xyz](https://www.zero.xyz/host/veritas.orbonomy.xyz/llms.txt)