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Stooq Historical Stock Prices
x402
Stooq Historical Stock Prices is a paid API for AI agents from api.chainmarket-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-24).
Fetches historical OHLCV (open, high, low, close, volume) price data for US stocks, ETFs, or indexes from Stooq via a pay-per-call API requiring no signup.
Price / call$0.002
Success—
StatusUnknown
How this service works
Daily historical prices for a US stock, ETF or index: date, open, high, low, close and volume, newest first, for any date range up to 10 years back (max 1,000 rows per call). Data from Nasdaq.com's public historical quotes API (Stooq blocks automated downloads).
Output
A JSON object containing the ticker symbol, date range queried, a list of daily price records (each with date, open, high, low, close, and volume), the total number of records returned, a link to the source (e.g. Nasdaq historical page), and a checkedAt timestamp.
Example use cases
Backtest a trading strategy
“Get me the daily open, high, low, close, and volume data for SPY from January 1st to June 30th 2025, up to 500 rows, so I can run a moving average backtest.”
Analyze recent stock performance
“Fetch the last 30 days of historical price data for MSFT stock so I can see how it's been trending recently.”
Compare ETF historical returns
“Pull the historical daily prices for QQQ ETF from March 1st to May 31st 2025 — make sure to set the asset class to etf.”
Technical details
Endpoint
GEThttps://api.chainmarket-api.workers.dev/api/finance/stooq-historical-stocks?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need daily historical OHLCV price data for US-listed stocks, ETFs, or market indexes without requiring an API key or subscription. It is ideal for pay-per-call agent workflows, backtesting, charting, or performance analysis where you need flexible date ranges and row limits. Prefer alternatives if you need real-time tick data, intraday data, options data, or non-US market coverage.
Side effects
- Invalid or unrecognized ticker symbol returns no data or an error
- Date range outside available history returns empty prices array
- Limit exceeds 1000 is clamped or rejected
- Missing required symbol parameter returns a validation error
- Payment failure (x402) results in no charge and no data returned
- Network or upstream Stooq outage may cause temporary unavailability
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"to": "2026-10-20",
"from": "2026-10-01",
"prices": [
{
"low": 338.7,
"date": "2026-10-20",
"high": 343.06,
"open": 339.86,
"close": 339.5,
"volume": 35851380
},
{
"low": 340.115,
"date": "2026-10-19",
"high": 346,
"open": 340.775,
"close": 342.94,
"volume": 34573180
}
],
"source": "https://www.nasdaq.com/market-activity/stocks/aapl/historical",
"symbol": "AAPL",
"checkedAt": "2026-10-23T09:36:11.085Z",
"totalRecords": 14
}
}Tags
x402
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