Brief

{
  "data": {
    "asOf": "2026-10-10T07:10:24.000Z",
    "coins": [
      {
        "change24h": 0.21,
        "change30d": -8.7,
        "change7d": -4.1,
        "coinId": "bitcoin",
        "marketCapRank": 1,
        "price": 82655,
        "symbol": "btc"
      }
    ],
    "etfFlows": {
      "btc": {
        "last7UsdM": -703.9,
        "latestDay": "2026-10-09",
        "latestUsdM": -244
      },
      "xrp": {
        "last7UsdM": 18.4,
        "latestDay": "2026-10-09",
        "latestUsdM": 3.1
      }
    },
    "events": [
      {
        "category": "Macro",
        "date": "2026-10-10",
        "importance": 2,
        "time": "08:30",
        "title": "Producer Price Index (PPI)"
      }
    ],
    "flags": [
      "BTC spot ETFs net outflow $704M over 7 days"
    ],
    "market": {
      "btcDominance": 59.1,
      "ethDominance": 11.8,
      "marketCapChange24h": 0.2,
      "refreshedAt": "2026-10-10T06:35:27.000Z",
      "totalMarketCap": 2805000000000,
      "totalVolume": 69290000000
    }
  },
  "disclaimer": "Market data and analysis, not investment advice.",
  "eventCount": 1,
  "flagCount": 1,
  "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/brief'

# 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/brief' \
  | 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 $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
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 $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fwww.blockchainiq.co%2Fapi%2Fx402%2Fv1%2Fbrief
const res = await pay("https://www.blockchainiq.co/api/x402/v1/brief");
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 $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
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/brief")
    print(res.status_code, res.text)