Launch AppUtility
🗄️Developer Resource // JSON Endpoint

FOUR JSON Data API

Access 300 data points for FOUR spanning 6 years (2020–Feb 23, 2026). Optimized JSON format (43.9 KB).

Download as CSV

Prefer CSV format? Download FOUR historical data as a CSV file for Excel, Google Sheets, or any spreadsheet application.

GET /api/tickers/FOUR/json● 200 OK (Live)

Tired of exporting to Excel? Track FOUR and analyze your portfolio locally with Pocket Portfolio.

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{
  "symbol": "FOUR",
  "timestamp": "2026-03-03T00:56:55.002Z",
  "price": 46.94,
  "change_24h": 6.512366689357833,
  "history_sample": [
    {
      "date": "2020-06-01",
      "open": 33.1,
      "high": 35,
      "low": 31.5,
      "close": 33.54,
      "volume": 12214900
    },
    {
      "date": "2020-06-08",
      "open": 33,
      "high": 37.33,
      "low": 30,
      "close": 34.75,
      "volume": 7302000
    }
  ]
}
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Import via CLI

Don't scrape. Use our open-source importer to normalize this dataset directly into your local database.

npx pocket-portfolio --import FOUR
🛡️

Need to archive this data?

Don't rely on ephemeral endpoints. Automatically sync FOUR.json updates to your private Google Drive for backtesting and compliance.

Enable Sovereign Sync

Includes unlimited API calls & historical CSV exports.

Dataset Specifications

  • Format: Standardized JSON (OHLCV)
  • Frequency: End-of-Day (EOD) + Real-time delay
  • Adjustments: Split-adjusted, Dividend-adjusted
  • Source: Multi-provider aggregation (AlphaVantage, Yahoo fallback)