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Api Endpoint

AISkills402: Base Receipt

Base Receipt Verify API: checks on Base mainnet that a transaction really paid USDC to an address - status, transfer, amount, payer and EIP-3009 nonce from the chain logs, never from the relayer. Base mainnet USDC only. $0.005 USDC per check, a live measurement. POST JSON {tx, pay_to, amount_micro?, from?, nonce?}; free example at https://api.aiskills402.com/v1/run/base-receipt-verify/example

Open interactive test console

Offering

Provider
api.aiskills402.com
Method
POST
Offering type
Api Endpoint
Transport type
http
Category
Other
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://api.aiskills402.com/v1/run/base-receipt-verify
MIME type
Not provided
First seen
2026-10-19T02:37:12.447Z
Last seen
Tags
api, base-receipt-verify, diagnostics, USDC, agent-payments

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": "0xbc0dcc70d8b5d85541d86ffc68d988fd59c22e68"
  }
]

Observed health

Status
Healthy
Latest latency
459 ms
Average latency
1837 ms
HTTP status
204
Last checked
Reachability
92.3% over 13 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": {
        "amount_micro": {
          "description": "Expected amount in USDC micro-units (6 decimals); null = do not check.",
          "pattern": "^[0-9]{1,30}$",
          "type": [
            "string",
            "null"
          ]
        },
        "from": {
          "description": "Expected payer (the transfer sender, not the relayer); null = do not check.",
          "pattern": "^0x[0-9a-fA-F]{40}$",
          "type": [
            "string",
            "null"
          ]
        },
        "nonce": {
          "description": "Expected EIP-3009 authorization nonce; with from, also asked of the chain when the receipt is unknown.",
          "pattern": "^0x[0-9a-fA-F]{64}$",
          "type": [
            "string",
            "null"
          ]
        },
        "pay_to": {
          "description": "The address that should have received USDC.",
          "pattern": "^0x[0-9a-fA-F]{40}$",
          "type": "string"
        },
        "tx": {
          "description": "Transaction hash on Base mainnet.",
          "pattern": "^0x[0-9a-fA-F]{64}$",
          "type": "string"
        }
      },
      "required": [
        "tx",
        "pay_to"
      ],
      "type": "object"
    },
    "bodyType": {
      "enum": [
        "json"
      ],
      "type": "string"
    },
    "headers": {
      "additionalProperties": {
        "type": "string"
      },
      "type": "object"
    },
    "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"
}