Buy one call from an x402 seller endpoint right now and report exactly what happ
Buy one call from an x402 seller endpoint right now and report exactly what happened: the unpaid call's status, the 402 decoded (accepts, chains, payTo, asset, price), whether the accept's EIP-712 domain name matches the token it names (the defect that silently makes a whole catalog unpayable), whether a stock client's signed payment was accepted, the settlement receipt and transaction, a slice of the response body, and the time each leg took. Ends in plain-English flags, never a score.
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://agent402.tools/api/seller-payability
| Category | Market data |
|---|---|
| Provider host | agent402.tools |
| Networks | eip155:10, eip155:1329, eip155:137, eip155:143, eip155:42161, eip155:42220, eip155:43114, eip155:4663, eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 5 from 4 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"body": {
"body": {
"text": "hello"
},
"method": "POST",
"url": "https://agent402.tools/api/hash"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"body": {
"description": "Optional JSON body the seller's route expects (POST only)",
"type": "object"
},
"maxUsd": {
"description": "Most to spend on the seller's own price, default 0.01, capped at 0.02",
"type": "number"
},
"method": {
"description": "GET or POST (default POST) - never a verb that could mutate the seller",
"type": "string"
},
"url": {
"description": "The seller endpoint to check (https), e.g. https://api.example.com/tools/summarize",
"type": "string"
}
},
"required": [
"url"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"challenge": {
"type": "object"
},
"checkedAt": {
"type": "string"
},
"domainFindings": {
"type": "array"
},
"flags": {
"type": "array"
},
"method": {
"type": "string"
},
"payable": {
"type": "boolean"
},
"payment": {
"type": "object"
},
"responseSlice": {
"type": "string"
},
"unpaidCall": {
"type": "object"
},
"url": {
"type": "string"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}