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ProspectIntel Claim Grounding Verifier
x402
ProspectIntel Claim Grounding Verifier is a paid API for AI agents from claim-grounding.prospectintel.workers.dev, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-18).
Verifies whether a specific claim is grounded in evidence by checking it against supporting sources or context
Price / call$0.1
Success—
StatusUnknown
How this service works
Fast claim grounding gate
Output
Returns a grounding verdict for the submitted claim, indicating whether it is supported by evidence, along with confidence signals and any relevant grounding details such as supporting or contradicting evidence fragments.
Example use cases
RAG output hallucination detection
“My RAG pipeline just generated the answer 'The EU AI Act was passed in March 2023' — can you verify whether that claim is actually grounded in the retrieved documents?”
Sales intelligence claim validation
“Our AI wrote that 'Acme Corp grew revenue by 40% last quarter' in a prospect brief — can you ground-check that claim before we send it to the sales team?”
Research assistant fact-check
“I need you to verify whether the claim 'mRNA vaccines cannot integrate into human DNA' is supported by the scientific evidence in this context passage before I include it in my report.”
Technical details
Endpoint
POSThttps://claim-grounding.prospectintel.workers.dev/v1/verify_claimWhen to prefer
Choose this endpoint when you need a fast, per-claim grounding gate — particularly for validating individual assertions produced by LLMs, RAG pipelines, or AI agents before presenting them to users. It is well-suited for hallucination detection, sales intelligence validation, and research workflows where a binary or scored grounded/ungrounded signal is needed quickly at $0.10 per check.
Side effects
- Missing required claim or body fields returns a validation error
- Ambiguous or overly vague claims may return low-confidence results
- Claims requiring real-time data may not be groundable if no live source is provided
- Payment failure or x402 authentication issues prevent execution
- Malformed JSON body causes a 400-level error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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