Api Endpoint

x402check

Check a counterparty before paying: OFAC SDN, phishing and drainer feeds, a live watch of drainer infrastructure, transaction simulation and injected-instruction analysis. Returns a score and a signed ES256 attestation.

Open interactive test console

Offering

Provider
x402check.xyz
Method
POST
Offering type
Api Endpoint
Transport type
http
Category
Security
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://x402check.xyz/v1/risk-check
MIME type
Not provided
First seen
2026-10-16T01:50:24.663Z
Last seen
Tags
Security, risk-check, sanctions, phishing, wallets

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.0035 USDC
Atomic price: 3500 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.007 USDC
Atomic price: 7000 · Network: eip155:137 · Asset: USDC · Scheme: exact
Payment option 3
0.009 USDC
Atomic price: 9000 · Network: eip155:42161 · Asset: USDC · Scheme: exact
Payment option 4
2000 atomic units
Atomic price: 2000 · Network: eip155:1329 · Asset: 0xe15fC38F6D8c56aF07bbCBe3BAf5708A2Bf42392 · Scheme: exact
Payment option 5
0.002 USDC
Atomic price: 2000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "3500",
    "payTo": "0xbF88b1F49B5e8Ec386289341c4a5ee00bB0E0178"
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "amount": "7000",
    "payTo": "0xbF88b1F49B5e8Ec386289341c4a5ee00bB0E0178"
  },
  {
    "scheme": "exact",
    "network": "eip155:42161",
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "amount": "9000",
    "payTo": "0xbF88b1F49B5e8Ec386289341c4a5ee00bB0E0178"
  },
  {
    "scheme": "exact",
    "network": "eip155:1329",
    "asset": "0xe15fC38F6D8c56aF07bbCBe3BAf5708A2Bf42392",
    "amount": "2000",
    "payTo": "0xbF88b1F49B5e8Ec386289341c4a5ee00bB0E0178"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "2000",
    "payTo": "Bofhoe2ye2adNQwZJtLepeKrBZq8CtHzRwPJXgWDH69X"
  }
]

Observed health

Status
Healthy
Latest latency
181 ms
Average latency
1915 ms
HTTP status
204
Last checked
Reachability
92.9% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "additionalProperties": false,
  "properties": {
    "body": {
      "additionalProperties": false,
      "properties": {
        "aud": {
          "description": "Audience to bind the attestation to",
          "maxLength": 256,
          "type": "string"
        },
        "authorization": {
          "additionalProperties": false,
          "description": "The caller's pre-authorization: recorded as asserted, it can only raise risk",
          "properties": {
            "pre_authorized": {
              "type": "boolean"
            },
            "source": {
              "maxLength": 128,
              "type": "string"
            }
          },
          "required": [
            "pre_authorized"
          ],
          "type": "object"
        },
        "chain": {
          "description": "A known CAIP-2 id or alias, e.g. base, ethereum, solana; it must be able to hold the wallet (an EVM address on an eip155 chain)",
          "maxLength": 64,
          "type": "string"
        },
        "context": {
          "description": "The content the agent acted on, verbatim: checked for injected instructions",
          "maxLength": 4096,
          "type": "string"
        },
        "domain": {
          "description": "The site or dApp involved",
          "maxLength": 2048,
          "type": "string"
        },
        "interaction": {
          "additionalProperties": false,
          "description": "What the agent is about to do (type), and whether an approval is unlimited",
          "properties": {
            "type": {
              "enum": [
                "native_transfer",
                "token_transfer",
                "token_approval",
                "nft_approval",
                "permit_signature",
                "order_signature",
                "message_signature",
                "contract_call"
              ],
              "type": "string"
            },
            "unlimited": {
              "type": "boolean"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        },
        "payment": {
          "additionalProperties": false,
          "description": "The payment this check is for; the attestation is bound to it",
          "properties": {
            "amount": {
              "pattern": "^\\d{1,78}$",
              "type": "string"
            },
            "asset": {
              "type": "string"
            },
            "network": {
              "type": "string"
            },
            "pay_to": {
              "type": "string"
            },
            "resource": {
              "maxLength": 512,
              "pattern": "^https?://\\S+$",
              "type": "string"
            }
          },
          "type": "object"
        },
        "screening": {
          "additionalProperties": false,
          "description": "The caller's own sanctions screening: recorded as asserted, it can only raise risk",
          "properties": {
            "sanctions": {
              "enum": [
                "clean",
                "flagged",
                "unknown"
              ],
              "type": "string"
            }
          },
          "required": [
            "sanctions"
          ],
          "type": "object"
        },
        "transaction": {
          "additionalProperties": false,
          "description": "An EVM transaction to simulate before it is signed ($0.005 per simulated item)",
          "properties": {
            "data": {
              "pattern": "^0x([0-9a-fA-F]{2})*$",
              "type": "string"
            },
            "from": {
              "pattern": "^0x[0-9a-fA-F]{40}$",
              "type": "string"
            },
            "to": {
              "pattern": "^0x[0-9a-fA-F]{40}$",
              "type": "string"
            },
            "value": {
              "pattern": "^(0x[0-9a-fA-F]{1,64}|\\d{1,78})$",
              "type": "string"
            }
          },
          "required": [
            "from"
          ],
          "type": "object"
        },
        "wallet": {
          "description": "The counterparty to check: recipient, spender, operator or pay_to (EVM, Solana, Bitcoin or Tron address, or a CAIP-10 id whose chain can hold it). A mixed-case EVM address must carry a valid EIP-55 checksum",
          "maxLength": 160,
          "minLength": 1,
          "type": "string"
        }
      },
      "required": [
        "wallet"
      ],
      "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 schema

{
  "properties": {
    "example": {
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}