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x402 Seller Reputation Checker
x402
x402 Seller Reputation Checker is a paid API for AI agents from scanpay-edge.alextaghiashvili.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-11-02).
Scores an x402 seller's trustworthiness 0-100 by inspecting their manifest, OpenAPI spec, 402 challenge, EIP-712 domain, supported networks, and pricing catalogue
Price / call$0.003
Success—
StatusUnknown
How this service works
x402 seller reputation: check another x402 seller manifest, OpenAPI, 402 challenge, EIP-712 domain, networks, price range and catalogue size, with a 0-100 score and flags
Output
Returns a JSON object with a 0-100 reputation score, a list of warning flags, reachability status, manifest and OpenAPI validity booleans, EIP-712 domain presence, supported blockchain networks (e.g. Base, Solana), price range (min/max USD), number of endpoints in manifest and OpenAPI, pay-to address count, and a cache/freshness timestamp. Score of 100 means full discovery completeness; flags indicate specific issues found.
Example use cases
Pre-integration x402 seller vetting
“Before I integrate with the x402 API at https://some-x402-provider.example.com, can you run a reputation check on them and tell me their trust score, whether their manifest and OpenAPI are valid, and what networks they support?”
Automated agent trust gating
“My AI agent is about to pay an x402 endpoint at https://api.newprovider.xyz — first check their seller reputation score and flag anything suspicious so I can decide whether to proceed.”
Comparing two x402 sellers
“I'm choosing between two x402 data providers. Can you pull the reputation scores for https://provider-a.io and https://provider-b.io and tell me which one has better scores, fewer flags, and a lower minimum price?”
Technical details
Endpoint
GEThttps://scanpay-edge.alextaghiashvili.workers.dev/api/v1/x402-seller-reputation?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to vet an unknown x402 API seller before paying them, when building an automated payment agent that should gate on seller quality, or when comparing multiple x402 providers. It is specifically designed for the x402 payment protocol ecosystem and checks all x402-specific signals (manifest, 402 challenge, EIP-712, network compatibility) in a single call — no alternative provides this combined x402-specific trust scoring.
Side effects
- Origin URL is unreachable — returns reachable:false and low score
- Seller has no manifest — manifest_ok:false, reduced score
- Invalid or missing OpenAPI spec — openapi_ok:false, reduced score
- No valid 402 challenge response — challenge.checked:false
- Origin not using HTTPS — rejected by input schema validation
- Malformed or non-URI origin value — schema validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"flags": [],
"score": 100,
"cached": false,
"origin": "https://scanpay-edge.alextaghiashvili.workers.dev",
"product": "scanpay.x402_seller_reputation",
"summary": "Discovery completeness score: 100/100; not a safety guarantee.",
"as_of_ms": 1730419200000,
"has_llms": true,
"networks": [
"eip155:8453",
"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
],
"challenge": {
"checked": true,
"networks": [
"eip155:8453",
"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
],
"price_usd": 0.003,
"http_status": 402,
"accepts_count": 2,
"has_eip712_domain": true
},
"price_usd": 0.003,
"reachable": true,
"openapi_ok": true,
"manifest_ok": true,
"pay_to_count": 2,
"price_max_usd": 0.003,
"price_min_usd": 0.001,
"endpoints_openapi": 3,
"endpoints_manifest": 6
}
}Tags
x402
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