Rwa

{
  "count": 250,
  "data": {
    "assets": [
      {
        "assetType": "commodity",
        "change24h": 0.17999,
        "marketCap": 6029540014,
        "marketCapRank": 1,
        "name": "Gold",
        "price": 4164.45,
        "refreshedAt": "2026-10-02T02:34:12.664+00:00",
        "rwaId": "gold",
        "symbol": "XAU",
        "totalVolume": 334215065
      }
    ],
    "summary": {
      "assetCount": 250,
      "categories": [
        {
          "count": 2,
          "label": "Commodities",
          "marketCap": 6256651229,
          "share": 0.6656977638081182,
          "type": "commodity"
        }
      ],
      "refreshedAt": "2026-10-02T02:34:12.664+00:00",
      "totalMarketCap": 9398636392
    }
  },
  "disclaimer": "Market data and analysis, not investment advice.",
  "source": "Blockchain IQ",
  "terms": "https://www.blockchainiq.co/terms"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://www.blockchainiq.co/api/x402/v1/rwa'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://www.blockchainiq.co/api/x402/v1/rwa' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwww.blockchainiq.co%2Fapi%2Fx402%2Fv1%2Frwa
const res = await pay("https://www.blockchainiq.co/api/x402/v1/rwa");
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://www.blockchainiq.co/api/x402/v1/rwa")
    print(res.status_code, res.text)