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Citiview Citation Checker
x402
Citiview Citation Checker is a paid API for AI agents from agents.citiviewgroup.com, paid per call via x402, $0.011/call, status unknown (last checked 2026-10-14).
Verifies whether a URL's source content actually supports a given claim, returning a verdict (supported, partial, not supported, or contradicted) with the deciding quote.
Price / call$0.011
Success—
StatusUnknown
How this service works
Citation checker: for each claim and the URL cited for it, reads the source and says whether it really supports the claim (supported, partial, not supported, contradicted) with the deciding quote. Priced $0.005 + $0.006 per citation (up to 6). Also callable as GET with the same fields as query parameters.
Output
For each claim-URL pair, the endpoint returns a verdict from four categories (supported, partial, not supported, contradicted) along with the specific quote from the source page that determines the verdict. Up to 6 claim-citation pairs can be checked in a single call.
Example use cases
Research paper citation audit
“I'm reviewing this research summary and want to make sure the citations hold up. Check these three claim-URL pairs for me: [{"claim":"Global EV sales grew 40% in 2023","url":"https://iea.org/reports/ev-outlook-2024"},{"claim":"The US leads EV adoption worldwide","url":"https://iea.org/reports/ev-outlook-2024"},{"claim":"Battery costs have fallen 90% since 2010","url":"https://bloomberg.com/bnef-battery-report"}] — tell me for each one whether it's supported, partial, not supported, or contradicted, with the key quote.”
Journalism fact-check before publication
“Before we publish this article, check whether our cited source actually backs up our claim. We're saying 'The WHO recommends no more than 25g of sugar per day for adults' and linking to https://www.who.int/news-room/fact-sheets/detail/sugars-intake-for-adults-and-children — is that supported by the page?”
Student essay reference verification
“I wrote an essay claiming 'Shakespeare is believed to have authored 37 plays' and I cited https://www.britishlibrary.org/shakespeare — can you read that page and tell me whether it actually supports that claim or if I'm misrepresenting the source?”
Technical details
Endpoint
GEThttps://agents.citiviewgroup.com/v1/citecheck?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to verify whether a specific URL's content actually backs up a specific claim — ideal for fact-checking, citation auditing, or research integrity workflows. It is distinct from general search or answer generation: you already have both the claim and the URL and want a verdict with evidence. Prefer it over manual reading when checking multiple citations at once (up to 6 per call).
Side effects
- URL is inaccessible, paywalled, or returns an error — verdict cannot be determined
- Claim text is ambiguous or too vague for reliable matching against source content
- Source page content is dynamic/JavaScript-rendered and cannot be read as static HTML
- Batch exceeds 6 claim-URL pairs — request is rejected or only partial results returned
- Network timeout fetching the source URL — no verdict returned for that citation
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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