Counterparty / KYB / vendor and payee vetting in one call
Counterparty / KYB / vendor and payee vetting in one call: OFAC sanctions screen of a name and crypto wallet, company identity (industry, HQ, size), domain age, email (MX, DMARC) and website checks, and an on-chain wallet risk check (Base, Ethereum). Returns block / review / clear with the reasons. Use before paying or onboarding someone. $0.02 USDC per call.
Answeringour last check, 2026-10-18
1 of 1checks answered this week
187 msmedian answer time
$0.02listed price per call
$0.02price it asked us
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://x402-agent-api.onrender.com/api/v1/counterparty-check
| Category | Company and compliance |
|---|---|
| Provider host | x402-agent-api.onrender.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-18 | valid payment request | 402 | $0.02 | 187 ms |
Example input (from the provider)
{
"body": {
"domain": "stripe.com",
"name": "Stripe, Inc."
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"chain": {
"default": "base",
"description": "Chain of `wallet`: \"base\" (default) or \"ethereum\".",
"enum": [
"base",
"ethereum"
],
"type": "string"
},
"domain": {
"description": "Their website or email domain, e.g. \"acme.com\" (a URL or an email address is accepted).",
"maxLength": 300,
"minLength": 3,
"type": "string"
},
"name": {
"description": "The company or person, e.g. \"Acme Robotics Inc.\" Screened against OFAC and looked up as a company.",
"maxLength": 200,
"minLength": 2,
"type": "string"
},
"via": {
"description": "Optional: the tool whose next_calls suggested this call (filled in for you).",
"maxLength": 64,
"type": "string"
},
"wallet": {
"description": "The EVM address you would pay or receive from, e.g. an x402 payTo.",
"pattern": "^0x[0-9a-fA-F]{40}$",
"type": "string"
}
},
"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": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}