ETH and USDC balance of any address on Base, read live from the chain (eth_getBalance + US

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x72DF68E7b3e1E2FcFbaeDc7183810b92CB6ddBd7",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "20000",
    "maxTimeoutSeconds": 300
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "queryParams": {
          "address": "EVM address on Base, 0x-prefixed, 40 hex chars"
        },
        "type": "http"
      },
      "output": {
        "example": {
          "address": "0xe3Badbd4f38214b9Eae528a1a5398f6678f63fB3",
          "block": 51234567,
          "eth": 0,
          "eth_wei": "0",
          "network": "eip155:8453",
          "usdc": 9.8973,
          "usdc_raw": "9897300"
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "properties": {
            "method": {
              "const": "GET"
            },
            "queryParams": {
              "properties": {
                "address": {
                  "description": "EVM address on Base, 0x-prefixed, 40 hex chars",
                  "type": "string"
                }
              },
              "required": [
                "address"
              ],
              "type": "object"
            },
            "type": {
              "const": "http"
            }
          },
          "required": [
            "type",
            "method"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {},
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

curl "https://oraclepost.higgsfield.app/api/premium/balance"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://oraclepost.higgsfield.app/api/premium/balance");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

import httpx
res = httpx.get("https://oraclepost.higgsfield.app/api/premium/balance")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header