x402stock.xyz · market-pulse

Use to find the day's biggest movers in one call. Returns the top 10 gainers and top 10 losers by percent move with price, the current US market session status (open, closed, pre, or post), and the latest market news headlines. No ticker needed. Built for agents scanning what is moving today. From x402stock, a pay-per-call market & economic data API. Pay per request in USDC via x402, no API key.

Call it in 30 seconds

// npm i x402-fetch viem
import { wrapFetchWithPayment } from "x402-fetch";
import { createWalletClient, http } from "viem";
import { privateKeyToAccount } from "viem/accounts";
import { base } from "viem/chains";

const account = privateKeyToAccount(process.env.PRIVATE_KEY); // funds USDC on Base
const wallet = createWalletClient({ account, chain: base, transport: http() });
const fetchWithPay = wrapFetchWithPayment(fetch, wallet);

// Pays the $0.03 USDC automatically on the 402, then returns the real response:
const res = await fetchWithPay("https://x402stock.xyz/api/v1/market-pulse", { method: "GET" });
console.log(await res.json());

# pip install x402 eth-account httpx
import os, asyncio
from eth_account import Account
from x402.clients.httpx import x402HttpxClient

account = Account.from_key(os.environ["PRIVATE_KEY"])  # funds USDC on Base

async def main():
    async with x402HttpxClient(account=account) as client:
        # x402 handles the 402 -> pay ($0.03 USDC) -> retry automatically
        r = await client.get("https://x402stock.xyz/api/v1/market-pulse")
        print((await r.aread()).decode())

asyncio.run(main())

# 1) An unpaid request returns HTTP 402 with the exact payment terms:
curl -i "https://x402stock.xyz/api/v1/market-pulse?limit=10"

# 2) Paying + retrying requires an x402 client that can sign the USDC
#    authorization (curl alone cannot). See the JS / Python tabs below.

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