Yahoo Finance API

Overview

Measurement Record

What actually happened when we called this API from our own infrastructure. Every value below was recorded by the request, not copied from the provider's documentation.

Request

GET https://query1.finance.yahoo.com/v8/finance/chart/AAPL?interval=1d&range=5d

Result

HTTP 200 · application/json · 1,609 bytes

Response time

41 ms (median of 3) · fastest 34 ms

Transport

TLSv1.3 · TLS_AES_128_GCM_SHA256 · certificate issued by DigiCert Inc

Browser CORS

No Access-Control-Allow-Origin header — call it from a server, not the browser

Served by

ATS

Recorded

2026-08-10

Fields Returned

Top-level fields present in the response we captured, with the type and value we actually received.

Captured Response

Captured from a real request to https://query1.finance.yahoo.com/v8/finance/chart/AAPL?interval=1d&range=5d on 2026-08-10. Long arrays and nested objects are truncated to keep the shape readable.

{
  "chart": {
    "result": [
      {
        "…": "(3 more fields)"
      }
    ],
    "error": null
  }
}

Implementation Example

Calls a real endpoint of this API. Replace any placeholder credentials with your own key.

// Using unofficial internal endpoint (no guarantees)
const symbol = "AAPL";
const url = `https://query1.finance.yahoo.com/v8/finance/chart/${symbol}?interval=1d&range=5d`;

const response = await fetch(url);
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();

const meta = data.chart.result[0].meta;
console.log(`Symbol: ${meta.symbol}`);
console.log(`Current Price: $${meta.regularMarketPrice}`);
console.log(`Currency: ${meta.currency}`);
console.log("⚠️ Warning: This is an unofficial endpoint and may break without notice");

# Using yfinance library (recommended for Python)
import yfinance as yf

# Get stock data
ticker = yf.Ticker("AAPL")

# Current price
info = ticker.info
print(f"Symbol: {info['symbol']}")
print(f"Current Price: ${info['currentPrice']}")
print(f"Market Cap: ${info['marketCap']:,}")

# Historical data
hist = ticker.history(period="5d")
print("
Last 5 days:")
print(hist[['Close', 'Volume']])
print("
⚠️ Note: yfinance is for research/educational use only")

curl "https://query1.finance.yahoo.com/v8/finance/chart/AAPL?interval=1d&range=5d"

What Can You Build?

// Fetch stock price data
const symbol = 'AAPL';
const response = await fetch(`https://finance.yahoo.com`);
const data = await response.json();
console.log(`${symbol} price:`, data.price || data.c || data.lastPrice);
console.log('Change:', data.change || data.dp || 'N/A');

// Fetch market overview data
const response = await fetch(`https://finance.yahoo.com`);
const data = await response.json();
const stocks = data.results || data.data || [];
const top = Array.isArray(stocks) ? stocks.slice(0, 5) : [stocks];
top.forEach(s => {
  console.log(`${s.symbol || s.ticker}: $${s.price || s.close || 'N/A'}`);
});

// Monitor stock price and trigger alerts
const symbol = 'TSLA';
const threshold = 200;
const response = await fetch(`https://finance.yahoo.com`);
const data = await response.json();
const price = data.price || data.c || 0;
console.log(`${symbol}: $${price}`);
if (price > threshold) {
  console.log(`⚠️ ${symbol} is above $${threshold}!`);
}

Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.

How This API Fails

We deliberately sent this API a broken request and recorded exactly what came back on 2026-08-10. Knowing the shape of an error before you hit it makes error handling much easier to write.

{
  "chart": {
    "result": null,
    "error": {
      "code": "Bad Request",
      "description": "Invalid input - interval=!!!invalid!!! is not supported. Valid intervals: [1m, 2m, 5m, 15m, 30m, 60m, 90m, 1h, 4h, 1d, 5d, 1wk, 1mo, 3mo]"
    }
  }
}

Common Errors & Troubleshooting

Generated guidance based on this API's documentation, not observed by us. Treat it as a starting point and check against the provider's own error reference.