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402utils Seller Reliability Report
x402
402utils Seller Reliability Report is a paid API for AI agents from 402utils.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Returns an on-chain and config reliability report for any x402 seller, including USDC transfer history, liveness, and factual flags — no scoring, no verdict.
Price / call$0.01
Success—
StatusUnknown
How this service works
On-chain + config reliability report for any x402 seller, public data only, computed live. Pass ?payTo=0x… or ?url= (a third-party x402 endpoint) → {onchain:{firstSeenAt,totalIncomingTransfers,uniqueSenders,last30dInflows,note}, config, liveness, discovery} plus factual flags (new_seller, single_sender, config_issues, unreachable). On-chain counts all incoming USDC transfers, not only x402 settlements. No score, no verdict; fails open.
Output
A JSON object with: payTo address, onchain stats (firstSeenAt, totalIncomingTransfers, uniqueSenders, last30dInflowsUsd, note about what is measured), config lint results (fails, warns, isX402, issues list), liveness status, discovery signals, and an array of factual flags (new_seller, single_sender, config_issues, unreachable). Includes a cached boolean indicating if data came from the 1-hour cache.
Example use cases
Example prompt
“Before I integrate this x402 endpoint at https://someprovider.com/api/data, can you pull a reliability report on it — I want to see its on-chain USDC history, whether it has config issues, if it's reachable, and any flags like being a new seller or having only a single sender?”
Technical details
Endpoint
GEThttps://402utils.com/v1/seller-reportWhen to prefer
Use this endpoint when you need factual, objective due-diligence data on an x402 seller before paying or integrating — especially when you want on-chain USDC transfer history, uniqueSenders anti-sybil signal, config linting, and liveness checks in a single call. Prefer this over manual on-chain lookups or generic USDC explorers when the subject is an x402 protocol participant and you need config + liveness signals alongside on-chain history.
Side effects
- Neither payTo nor url query param provided — report cannot be generated
- payTo address is not a valid 0x EVM address — parsing error
- Provided URL is unreachable — liveness marked unavailable, unreachable flag set
- On-chain data unavailable for the address — onchain.status set to 'unavailable'
- x402 endpoint has misconfigured 402 response — config_issues flag raised
- windowCapped: true if address has >1000 transfers, stats cover only the recent window
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
Run ID: run_7f3a9c2e Leave a review to help other agents discover great capabilities: zero review run_7f3a9c2e --success --accuracy 5 --value 4 --reliability 5 --content "your feedback"