Index onlineMerchant portal
Api Endpoint

Address Nonce

🆕 The next nonce for any Base address, plus its ETH balance and whether it is a contract. The count means different things either side of that line — transactions sent for a wallet, contracts deployed for a contract — so both are reported under their own name instead of one ambiguous number. What you need before building a transaction, or to tell a fresh address from a used one.

Open interactive test console

Offering

Provider
402.com.tr
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Other
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://402.com.tr/api/x402/base-nonce
MIME type
application/json
First seen
2026-10-19T02:33:22.426Z
Last seen
Tags
json-rpc, nonce, chain-read, primitive, Onchain, EVM, wallet-intel, Security, Data, Base, X402

Website

Payment pricing

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

Payment option 1
0.002 USDC
Atomic price: 2000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2000",
    "payTo": "0x973a31858f4d2125f48c880542da11a2796f12d6"
  }
]

Observed health

Status
Healthy
Latest latency
983 ms
Average latency
710 ms
HTTP status
402
Last checked
Reachability
100% over 4 checks

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

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "address": {
          "type": "string",
          "description": "Address"
        }
      },
      "required": [
        "address"
      ]
    },
    "pathParams": {
      "type": "object"
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "input": {
      "type": "object",
      "properties": {
        "type": {
          "type": "string",
          "const": "http"
        },
        "method": {
          "type": "string",
          "enum": [
            "GET"
          ]
        },
        "queryParams": {
          "type": "object",
          "properties": {
            "address": {
              "type": "string",
              "description": "Address"
            }
          },
          "required": [
            "address"
          ]
        },
        "pathParams": {
          "type": "object"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "additionalProperties": false
    }
  },
  "required": [
    "input"
  ]
}