Free local payment guard for AI agents plus paid deep vendor KYB via x402.
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Fast pre-payment consistency guard for AI agents. Checks HTTPS destination, EVM payTo format, Base network, amount validity, and detects recipient/network/price changes against caller expectations. Returns allow/review/block. Use vendor_preflight for deep KYB.
Observed payment recipient wallet
Observed CAIP-2 network, e.g. eip155:8453
HTTPS service or payment endpoint
Observed payment amount in USD/USDC terms
Previously trusted or expected recipient wallet
Previously expected CAIP-2 network
Previously quoted or expected amount
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Fast pre-payment consistency guard for AI agents. Checks HTTPS destination, EVM payTo format, Base network, amount validity, and detects recipient/network/price changes against caller expectations. Returns allow/review/block. Use vendor_preflight for deep KYB.
| Argument | Type | Description |
|---|---|---|
| pay_to* | string | Observed payment recipient wallet |
| network* | string | Observed CAIP-2 network, e.g. eip155:8453 |
| endpoint* | string | HTTPS service or payment endpoint |
| amount_usd* | number | Observed payment amount in USD/USDC terms |
| expected_pay_to | string | Previously trusted or expected recipient wallet |
| expected_network | string | Previously expected CAIP-2 network |
| expected_amount_usd | number | Previously quoted or expected amount |
{
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"endpoint",
"pay_to",
"amount_usd",
"network"
],
"properties": {
"pay_to": {
"type": "string",
"minLength": 1,
"description": "Observed payment recipient wallet"
},
"network": {
"type": "string",
"minLength": 1,
"description": "Observed CAIP-2 network, e.g. eip155:8453"
},
"endpoint": {
"type": "string",
"minLength": 8,
"description": "HTTPS service or payment endpoint"
},
"amount_usd": {
"type": "number",
"description": "Observed payment amount in USD/USDC terms",
"exclusiveMinimum": 0
},
"expected_pay_to": {
"type": "string",
"description": "Previously trusted or expected recipient wallet"
},
"expected_network": {
"type": "string",
"description": "Previously expected CAIP-2 network"
},
"expected_amount_usd": {
"type": "number",
"description": "Previously quoted or expected amount",
"exclusiveMinimum": 0
}
}
}Verify vendor identity before paying: KYB, supplier risk and counterparty checks for AI agents. Returns allow/review/block with legal-entity evidence, potential sanctions signals, RDAP domain evidence and company-domain consistency. Payment safety decision support via x402; not legal or transaction approval.
| Argument | Type | Description |
|---|---|---|
| name* | string | Vendor or counterparty name |
| domain | string | Optional vendor domain |
| country | string | Optional ISO 3166-1 alpha-2 country code |
| registration_number | string | Required for PL: 10-digit KRS, SK: 8-digit IČO, US: SEC CIK (1–10 digits). Optional company number for IE/LV. See country coverage for limited scopes. |
{
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"name"
],
"properties": {
"name": {
"type": "string",
"maxLength": 200,
"minLength": 1,
"description": "Vendor or counterparty name"
},
"domain": {
"type": "string",
"minLength": 3,
"description": "Optional vendor domain"
},
"country": {
"type": "string",
"maxLength": 2,
"minLength": 2,
"description": "Optional ISO 3166-1 alpha-2 country code"
},
"registration_number": {
"type": "string",
"maxLength": 11,
"minLength": 1,
"description": "Required for PL: 10-digit KRS, SK: 8-digit IČO, US: SEC CIK (1–10 digits). Optional company number for IE/LV. See country coverage for limited scopes."
}
}
}