# Canon – Claim Verification & Academic Research

> Canon – Claim Verification & Academic Research is a paid API for AI agents from veri.orbonomy.xyz, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).

Verifies factual claims and searches academic papers/journals for AI agents, returning a structured result in a specified language.

## Facts

- Endpoint: POST https://veri.orbonomy.xyz/api/verify
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/canon-claim-verification-academic-research-3995fb3b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Mb7nvRJ2snxpBgM7v1oy2

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-claim-verification-academic-research-3995fb3b -d '<json body>'
```

Example prompt: Can you fact-check this claim for me in English: 'Vitamin C supplementation significantly reduces the duration of the common cold in healthy adults'? I want to know if it holds up against academic research.

## When to prefer this

Choose Canon when you need to verify a specific factual claim against academic or scholarly sources, especially in a multilingual context. It is well-suited for AI agents that need to ground responses in evidence, detect misinformation, or cite peer-reviewed research. Prefer it over general web search when academic credibility and structured verification results are required.

## Known failure modes

- Missing required 'claim' field returns validation error
- Missing 'lang' field returns validation error
- Unsupported language code may yield no results or an error
- Ambiguous or very short claims may produce low-confidence results
- Payment failure (insufficient USDC on Base) returns 402 error
- Highly niche or very recent claims may lack academic coverage
- Network timeout if underlying academic databases are slow

## 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 boolean 'success' field indicating whether the verification completed, along with any supporting or refuting evidence, source references, or confidence signals derived from academic literature and fact-checking sources.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "lang",
  "claim"
 ],
 "properties": {
  "lang": {
   "type": "string"
  },
  "claim": {
   "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-claim-verification-academic-research-3995fb3b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from veri.orbonomy.xyz](https://www.zero.xyz/host/veri.orbonomy.xyz/llms.txt)