Api Endpoint

Rooms by Aurmada

Use it when you need a wallet's live ETH and USDC balance on Base or Ethereum, or need to know whether an address is a contract or an EIP-7702 delegated account (for example before sending funds). Also returns code size and nonce. Read live from public RPC nodes at the latest block. Never charged for errors: we settle the payment only after a successful answer.

Open interactive test console

Offering

Provider: rooms.aurmada.com
Method: GET
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://rooms.aurmada.com/x402/v1/onchain/address
MIME type: application/json
First seen: 2026-10-16T01:50:32.458Z
Last seen: 2026-11-04T17:23:06.809Z
Tags: Onchain, Wallet, balance, USDC, eth, Base, Ethereum, address-lookup, contract-check, eip-7702, Crypto

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": "0xEf56E1Fa792B8F3e87dcB09fA36261D213c10a09"
  }
]

Observed health

Status: Healthy
Latest latency: 64 ms
Average latency: 127 ms
HTTP status: 402
Last checked: 2026-11-04T17:23:06.804Z
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

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "address": {
          "type": "string",
          "pattern": "^0x[0-9a-fA-F]{40}$",
          "description": "0x address."
        },
        "chain": {
          "type": "string",
          "enum": [
            "base",
            "ethereum"
          ],
          "description": "Chain (default base)."
        }
      },
      "required": [
        "address"
      ],
      "additionalProperties": false
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "queryParams": {
          "additionalProperties": false,
          "properties": {
            "address": {
              "description": "0x address.",
              "pattern": "^0x[0-9a-fA-F]{40}$",
              "type": "string"
            },
            "chain": {
              "description": "Chain (default base).",
              "enum": [
                "base",
                "ethereum"
              ],
              "type": "string"
            }
          },
          "required": [
            "address"
          ],
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}