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WhatChUNeed Fact Check Claims
x402
WhatChUNeed Fact Check Claims 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).
Verifies factual claims in a given text, returning a structured fact-check result indicating accuracy and supporting context
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
A structured JSON object containing a result field with the fact-check outcome (verdict, supporting evidence, accuracy assessment) and a status field indicating success or failure of the request.
Example use cases
Verifying a viral social media claim
“Someone shared a post saying 'Drinking lemon water every morning cures cancer.' Can you fact-check that claim and tell me if it's accurate?”
Checking a news article statistic
“This article says '90% of plastic in the ocean comes from just 10 rivers.' Can you verify whether that statistic is factually correct?”
Validating a political quote
“I heard that Abraham Lincoln said 'You can fool all the people some of the time.' Can you fact-check whether he actually said that?”
Technical details
Endpoint
POSThttps://whatchuneed.vercel.app/api/factcheck/claimsWhen to prefer
Use this endpoint when an agent needs to programmatically verify factual claims, news headlines, statistics, or quotes at $0.05 per call via x402 crypto micropayment — ideal for pipelines that need automated fact-checking without managing a dedicated misinformation API subscription.
Side effects
- Empty or missing input string returns validation error
- Ambiguous or opinion-based claims may return inconclusive verdicts
- Claims about very recent events may lack sufficient data for verification
- Overly long input text may be truncated or rejected
- Network or payment failures return non-200 status
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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