# Canon – Fact-Checking & Academic Research API

> Canon – Fact-Checking & Academic Research API is a paid API for AI agents from aury.orbonomy.xyz, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Verifies claims, searches academic papers, and explores journals for AI agents via a single entity-lookup endpoint.

## Facts

- Endpoint: POST https://aury.orbonomy.xyz/api/entity
- 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/canon-fact-checking-academic-research-api-59625423
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fXklnVDdsZy6-Kxr3UEep

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 canon-fact-checking-academic-research-api-59625423 -d '<json body>'
```

Example prompt: Can you fact-check this claim using Canon and search for any academic papers that support or refute it — the entity ID is 'climate-co2-2023': 'Global CO2 levels rose by 3 ppm in 2023'?

## When to prefer this

Choose this endpoint when an AI agent needs to verify a specific claim, look up an academic entity, or search scholarly literature by a known ID, and is operating in a USDC-on-Base x402 payment context. Prefer over general web search when structured, citable academic verification is required.

## Known failure modes

- Missing required 'id' field returns 400 validation error
- Unknown or unrecognized entity ID returns empty or null result
- Payment not completed (x402 USDC on Base not settled) results in 402 Payment Required
- Service unavailable returns 503 or timeout
- Malformed JSON body returns 400 parse error

## How this service works

Fact-checking and academic research for AI agents. Verify claims, search papers, explore journals. USDC on Base.

## Output

Returns a JSON object with a 'success' boolean and likely associated fact-check verdict, matched academic papers, journal entries, or verification metadata related to the queried entity ID.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "id"
 ],
 "properties": {
  "id": {
   "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/canon-fact-checking-academic-research-api-59625423/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from aury.orbonomy.xyz](https://www.zero.xyz/host/aury.orbonomy.xyz/llms.txt)