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whatchuneed Fact Check Search
x402
whatchuneed Fact Check Search is a paid API for AI agents from whatchuneed.vercel.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).
Searches for and fact-checks claims by querying relevant sources and returning a verification result
Price / call$0.05
Success—
StatusUnknown
How this service works
320+ pay-per-call API endpoints across accommodation, LLM, code execution, crypto, medical, finance, and more. One API, one payment. Powered by x402 protocol.
Output
Returns a result object containing the fact-check outcome and a status string. The result typically includes verdict information, relevant sources, or evidence gathered during the search to support or refute the queried claim.
Example use cases
Verify viral news headline
“I just saw a headline saying 'Scientists discover a cure for Alzheimer's disease' — can you fact-check that and tell me if there's any truth to it?”
Validate politician quote
“Someone told me that Elon Musk said 'Mars colonization will happen by 2030' — can you verify if he actually said that and whether it checks out?”
Check statistics in a report
“I'm reviewing a report that claims '70% of plastic waste ends up in the ocean' — can you fact-check that statistic and find out if it's accurate?”
Technical details
Endpoint
POSThttps://whatchuneed.vercel.app/api/factcheck/searchWhen to prefer
Choose this endpoint when you need a quick, pay-per-call fact-checking search without committing to a subscription service. Ideal for agents that occasionally need to verify claims, check misinformation, or validate statements as part of a broader workflow, especially when integrated into an x402 payment pipeline.
Side effects
- Empty or ambiguous input string may return inconclusive results
- Complex or highly niche claims may lack sufficient indexed sources to verify
- Rate limiting or payment failure (402) if USDC payment is not properly attached
- Overly long input strings may be truncated or rejected
- Non-English claims may have reduced accuracy due to limited source coverage
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | string | Request input |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| result | object | Response data |
| status | string |
Tags
x402
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