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Second Opinion Quick Verify
x402
Second Opinion Quick Verify is a paid API for AI agents from secondopinionx402.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).
Performs a fast, reasoning-only logical consistency check on a claim without web research, returning a verdict or 'inconclusive' if live data is needed.
Price / call$0.02
Success—
StatusUnknown
How this service works
Second Opinion quick: an independent reasoning-only check (no web research) of your claim's logic and consistency with established knowledge. Honest 'inconclusive' when the claim needs live research.
Output
A structured response containing a verdict (supported, contradicted, or inconclusive), a reasoning explanation of why the claim is or isn't logically consistent with established knowledge, and an 'inconclusive' signal when the claim requires live research or real-time data to evaluate properly.
Example use cases
Validate customer complaint logic before escalation
“Before I escalate this support ticket, can you quickly check if the customer's claim even makes logical sense? They're saying our software slowed down their computer by using less RAM. Can you do a reasoning check on that without looking anything up?”
Screen political debate assertions for consistency
“I'm moderating an online debate and need to quickly weed out logically broken arguments. Can you do a fast second opinion on whether this claim holds together using pure reasoning: 'If someone supports free speech, they must oppose all content moderation'?”
Verify argument structure in legal briefs
“I'm reviewing arguments from our legal team and want a quick independent logic check before we submit. Can you verify if this reasoning is internally consistent without doing research: 'Contracts signed under duress are invalid, therefore all contracts signed during recessions are unenforceable'?”
Technical details
Endpoint
POSThttps://secondopinionx402.com/v1/verify/quickWhen to prefer
Use this endpoint when you need a fast, low-cost ($0.03) logical consistency check on a claim and don't need web research — ideal for screening assertions before deeper investigation, validating argument structure, or getting an independent reasoning check on established-knowledge claims. Prefer this over full fact-checking services when speed and cost matter and the claim doesn't depend on recent events.
Side effects
- Missing or empty claim body returns a 400 validation error
- Claims requiring live data or recent events return an 'inconclusive' result rather than a verdict
- Ambiguous or multi-part claims may produce low-confidence or partial verdicts
- Network timeout if the reasoning model takes too long
- Payment failure via x402 protocol returns 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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