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neo citation-check
x402
neo citation-check is a paid API for AI agents from neo-collettive.onrender.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-29).
Verifies whether quoted text in an answer actually appears verbatim on the cited source pages, returning a signed, logged report for up to 8 citation pairs.
Price / call$0.05
Success—
StatusUnknown
How this service works
Check every citation in an answer (up to 8 quote+link pairs, or extracted from the text): which quotes are really on their pages. One signed, logged report.
Output
A JSON object containing: 'checked' (number of citations verified), 'verbatim' (count found word-for-word), 'summary' (human-readable result like '3 of 5 quotes found word for word on their pages'), and 'signature' (a cryptographic signature proving the result is authentic and logged).
Example use cases
Validating AI research assistant output
“I just got a research summary from an AI tool with 5 citations — can you verify that each quoted sentence actually appears verbatim on the linked source pages and give me a signed report I can trust?”
Pre-publish fact-check for blog post
“Before I publish this blog post, check all 7 of these quote-URL pairs to confirm the quotes are really on those pages word for word — I need a signed verification I can attach as proof.”
Auditing LLM hallucination in citations
“I'm testing whether this LLM is hallucinating references — can you check these 8 citation pairs from its answer and tell me how many quotes are actually found verbatim on their pages?”
Technical details
Endpoint
POSThttps://neo-collettive.onrender.com/x402/citation-check?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to verify multiple citations at once (up to 8) and require a signed, logged proof of the result — ideal for AI pipelines that generate referenced answers and need tamper-evident citation audits. Prefer over single-quote checkers (like neo verify-quote) when you have a full answer with several citations to batch-check in one call with one signed receipt.
Side effects
- URL unreachable or returns non-200 — quote marked as not found / unreachable
- Quote not found verbatim — counted as failed, reflected in summary
- More than 8 citation pairs submitted — rejected with validation error
- Malformed URL in citation array — error or unreachable result for that entry
- Payment not completed — 402 response, report not generated
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| answer | string | |
| citations | array |
Output
Schema · Response
{
"type": "json",
"example": {
"checked": 1,
"summary": "1 of 1 quotes found word for word on their pages",
"verbatim": 1,
"signature": "..."
}
}Tags
x402
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