Api Endpoint

vAPI x402 decoder

Decode what an EVM payment authorization actually authorizes before signing.

Open interactive test console

Offering

Provider: api-staging.vapinetwork.ai
Method: POST
Offering type: Api Endpoint
Transport type: http
Category: Blockchain And Crypto
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://api-staging.vapinetwork.ai/x402/decode
MIME type: Not provided
First seen: 2026-10-16T01:50:24.663Z
Last seen: 2026-11-01T14:59:17.120Z
Tags: None supplied

Website

Payment pricing

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

Payment option 1: 0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "payTo": "0x6B7B3cb62a2D7d232Bf5e0D030676bfb4F9Ba4E5"
  }
]

Observed health

Status: Healthy
Latest latency: 383 ms
Average latency: 926 ms
HTTP status: 204
Last checked: 2026-11-04T21:05:10.286Z
Reachability: 100% over 15 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": {
        "signature": {
          "type": "string"
        },
        "typedData": {
          "description": "JSON string of the EIP-712 typed data",
          "type": "string"
        }
      },
      "required": [
        "typedData"
      ],
      "type": "object"
    },
    "bodyType": {
      "enum": [
        "json"
      ],
      "type": "string"
    },
    "method": {
      "enum": [
        "POST"
      ],
      "type": "string"
    },
    "type": {
      "const": "http",
      "type": "string"
    }
  },
  "required": [
    "type",
    "method",
    "bodyType",
    "body"
  ],
  "type": "object"
}

Output schema

{
  "additionalProperties": false,
  "properties": {
    "example": {
      "additionalProperties": false,
      "properties": {
        "amountAtomic": {
          "type": [
            "string",
            "null"
          ]
        },
        "amountFormatted": {
          "type": [
            "string",
            "null"
          ]
        },
        "amountSymbol": {
          "type": [
            "string",
            "null"
          ]
        },
        "chainId": {
          "type": [
            "integer",
            "null"
          ]
        },
        "nonce": {
          "type": [
            "string",
            "null"
          ]
        },
        "owner": {
          "type": [
            "string",
            "null"
          ]
        },
        "primaryType": {
          "type": "string"
        },
        "signer": {
          "type": [
            "string",
            "null"
          ]
        },
        "spenderOrRecipient": {
          "type": [
            "string",
            "null"
          ]
        },
        "standard": {
          "type": "string"
        },
        "token": {
          "type": [
            "string",
            "null"
          ]
        },
        "validity": {
          "type": "object"
        },
        "verifyingContract": {
          "type": [
            "string",
            "null"
          ]
        },
        "warnings": {
          "items": {
            "type": "object"
          },
          "type": "array"
        }
      },
      "required": [
        "standard",
        "primaryType",
        "token",
        "verifyingContract",
        "chainId",
        "spenderOrRecipient",
        "owner",
        "amountAtomic",
        "amountFormatted",
        "amountSymbol",
        "validity",
        "nonce",
        "signer",
        "warnings"
      ],
      "type": "object"
    },
    "type": {
      "const": "json",
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}