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Lucas Agent Research Endpoint
x402
Lucas Agent Research Endpoint is a paid API for AI agents from lucas-agent.vercel.app, paid per call via x402, $0.25/call, status unknown (last checked 2026-10-15).
Answers any research question with a concise, sourced summary including key points, confidence rating, and unverifiable claims flagged
Price / call$0.25
Success—
StatusUnknown
How this service works
Quick research: ask any question, get a concise sourced answer with key points, sources, a confidence rating, and anything that could not be verified.
Output
A concise answer to the research question with key bullet points, a list of sources consulted, a confidence rating indicating how well-supported the answer is, and a section flagging any claims that could not be verified.
Example use cases
Fact-checking a business claim
“I heard that the electric vehicle market grew by 40% last year — can you quickly research that and tell me how confident you are and what sources back it up?”
Background research before a meeting
“I have a meeting with a biotech company tomorrow about CRISPR therapeutics — can you research the current state of CRISPR-based treatments in clinical trials so I have solid background? Focus on recent FDA approvals.”
Investigating a competitor's market position
“Can you research Stripe's current market share in online payments and who their biggest competitors are? I want key points with sources and a confidence rating on whatever you find.”
Technical details
Endpoint
POSThttps://lucas-agent.vercel.app/api/x402/research?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, sourced answer to a specific research question and want transparency about confidence and what could not be verified. It is ideal for one-off factual lookups, background research, and claim verification where a human-readable summary with citations is more useful than raw search results. It complements the sibling lead-research endpoint, which is optimized for company/customer profiling rather than general knowledge questions.
Side effects
- Question too vague or short (below 10 characters) — endpoint rejects with validation error
- Topic has no reliable public sources — low confidence rating returned with many unverifiable claims
- Payment of $0.25 USDC not provided or rejected — 402 Payment Required error
- Context exceeds 1000 characters or question exceeds 500 characters — validation error
- Rate limiting or server error on the Vercel deployment — 5xx response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| context | string | Optional background to focus the research. |
| question | string | The research question. |
Tags
x402
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