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Canon Claim Verifier
x402
Canon Claim Verifier is a paid API for AI agents from v0-canon.orbonomy.xyz, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).
Verifies a factual claim using fact-checking and academic research sources, returning a verification result
Price / call$0.1
Success—
StatusUnknown
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 indicating whether the verification call was processed. The response is expected to include whether the claim could be verified, though full schema detail beyond the success flag is limited.
Example use cases
Verify trending social media health claims
“I keep seeing posts claiming that drinking alkaline water cures cancer. Can you fact-check that for me?”
Validate news headlines before sharing
“A news article just came across my feed saying the earth's magnetic poles have already reversed. Is that actually true or misleading?”
Check scientific statistics in presentations
“I'm preparing a presentation and want to verify this stat I found: 'Humans only use 10% of their brain.' Can you check if that's accurate?”
Technical details
Endpoint
POSThttps://v0-canon.orbonomy.xyz/api/verifyWhen to prefer
Use Canon when an AI agent needs to fact-check a specific claim or assertion against academic and journalistic sources, especially when accuracy and source credibility matter. Prefer this over general web search when the task is explicitly to verify truth value of a statement rather than gather background information.
Side effects
- Missing required 'claim' field returns validation error
- Missing required 'lang' field returns validation error
- Payment not received or insufficient USDC causes 402 Payment Required
- Unverifiable or ambiguous claims may return success:false or inconclusive result
- Rate limiting or server errors may return 5xx responses
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| langrequired | string | |
| claimrequired | string |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| success | boolean |
Tags
x402
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