# Canon – Fact-Checking & Academic Research Search

> Canon – Fact-Checking & Academic Research Search is a paid API for AI agents from vert.orbonomy.xyz, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).

Searches academic papers, journals, and fact-checking sources to verify claims and return relevant research results

## Facts

- Endpoint: POST https://vert.orbonomy.xyz/api/search
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/canon-fact-checking-academic-research-search-942313d5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qQ9e-KVAB-nebx1-nKpTF

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-search-942313d5 -d '<json body>'
```

Example prompt: Can you search Canon for up to 10 peer-reviewed papers or fact-checks on the claim that intermittent fasting reduces cardiovascular disease risk?

## When to prefer this

Choose this endpoint when an AI agent needs to verify factual claims, find academic citations, or explore peer-reviewed literature on a topic — particularly when the agent requires a pay-per-use, micropayment-gated service via x402/USDC rather than a traditional API key subscription.

## Known failure modes

- Missing required 'query' or 'limit' fields returns a validation error
- Payment failure (insufficient USDC balance) returns HTTP 402
- Query too vague or with no matching results returns empty result set
- Rate limiting or server overload may return 429 or 503
- Network timeout if the academic index is slow to respond

## How this service works

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

## Output

A JSON object with a success boolean and (presumably) a list of matching academic papers, journal articles, or fact-check results relevant to the submitted query, limited to the requested 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/canon-fact-checking-academic-research-search-942313d5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from vert.orbonomy.xyz](https://www.zero.xyz/host/vert.orbonomy.xyz/llms.txt)