Stock quote

Live stock/index/FX/crypto quote: last price, day range, 52-week range, previous close, currency, exchange, and a relative change vs. previous close, as clean JSON. Backed by Yahoo Finance's public chart endpoint - keyless, no rate limits in practice. Symbols: equities (AAPL), indices (^GSPC), FX (EURUSD=X), crypto (BTC-USD).

Input

Example output

{
  "symbol": "AAPL",
  "name": "Apple Inc.",
  "exchange": "NMS",
  "currency": "USD",
  "price": 232.45,
  "previousClose": 230.1,
  "changeAbs": 2.35,
  "changePct": 1.0213,
  "dayHigh": 233.5,
  "dayLow": 229.2,
  "fiftyTwoWeekHigh": 260.1,
  "fiftyTwoWeekLow": 164.08,
  "volume": 51234567,
  "regularMarketTime": "2026-06-19T20:00:00Z"
}

Try it - see the 402 challenge (free)

curl -i "https://agent402.tools/api/stock-quote?symbol=AAPL"

The response is HTTP 402 Payment Required with exact payment requirements. Any x402 v2 client pays automatically and retries:

Paid call (JavaScript agent)

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

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/stock-quote?symbol=AAPL");

Part of these workflows

This tool is one step in 9 curated multi-tool workflows - agents can fetch the whole sequence as an MCP prompt or call https://agent402.tools/api/skill-packs/{slug}/prompt.

• Earnings deep-dive - Everything you need before a company reports: the upcoming earnings date, the latest financials, recent SEC filings, the live quote, and fresh analyst news - in one pass.
• Options analytics - Price a European option on a live stock: pull the current quote, estimate volatility from recent history, run Black-Scholes for fair value + the full greeks, and check the news for catalysts.
• Financial analysis - Quick company snapshot: live quote, 9 key financial metrics (revenue through cash flow), and upcoming earnings - one call, one payment.
• Financial research - Pull SEC filings, real-time quotes, historical prices, and macro context for a single ticker in one pass.
• Cross-asset price monitor - Side-by-side snapshot of a stock and a crypto asset: live quotes, 1-year history, and a date-stamped comparison.
• Company dossier - Comprehensive company research report in one call: live quote, financials, SEC filings, insider trades, and recent news - all in parallel.
• Earnings watch - Is this company reporting soon and what's the consensus? Earnings calendar, live quote, and recent search results in one call.
• Insider alert - Insider buying/selling activity for a stock: Form 4 trades, live quote, and recent SEC filings in one call.
• Market open brief - Full pre-trade snapshot for one ticker before the bell: the live quote, the pre-market quote, the options surface, dividend posture, and today's market-wide earnings calendar - one payment.

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