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ProspectIntel Claim Extractor
x402
ProspectIntel Claim Extractor is a paid API for AI agents from claim-grounding.prospectintel.workers.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-18).
Extracts atomic, discrete claims from a body of text for downstream grounding or verification
Price / call$0.05
Success—
StatusUnknown
How this service works
Extract atomic claims
Output
A structured list of atomic claims extracted from the input text, where each claim is a single, discrete, individually verifiable statement decomposed from the original content.
Example use cases
Fact-checking pipeline preprocessing
“Take this news article excerpt and extract every individual claim so I can verify each one separately: 'The vaccine was approved in 2021, reduces hospitalization by 85%, and has been administered to over 500 million people worldwide.'”
AI response grounding audit
“My AI assistant just gave me this response about climate change — can you extract every atomic claim it made so I can check which ones are actually grounded in evidence?”
Research paper claim decomposition
“Here's the abstract from a research paper — pull out each distinct factual claim it makes so I can cross-reference them against the study's actual findings.”
Technical details
Endpoint
POSThttps://claim-grounding.prospectintel.workers.dev/v1/extract_claimsWhen to prefer
Choose this endpoint when you need to decompose unstructured text into granular, individually testable claims before running grounding or fact-checking checks. It is especially useful as a preprocessing step ahead of a claim-grounding gate, allowing you to verify each assertion independently rather than evaluating a passage as a whole. Prefer it over general NLP extraction APIs when your workflow specifically involves verifying factual accuracy of generated or retrieved content.
Side effects
- Missing required 'input' field returns a validation error
- Non-JSON body type rejected — bodyType must be 'json'
- Empty or very short input may yield no claims extracted
- Payment not included or insufficient USDC triggers 402 Payment Required
- Malformed HTTP method (non-POST) is rejected
- Very long documents may exceed token or processing limits
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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