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🗄️Developer Resource // JSON Endpoint

HCS JSON Data API

Access 34 data points for HCS spanning 4 years (2010–Jul 1, 2013). Optimized JSON format (5.0 KB).

Download as CSV

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

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

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{
  "symbol": "HCS",
  "timestamp": "2026-03-09T20:51:21.880Z",
  "price": null,
  "change_24h": null,
  "history_sample": [
    {
      "date": "2010-03-01",
      "open": 0.71,
      "high": 0.71,
      "low": 0.67,
      "close": 0.67,
      "volume": 2000
    },
    {
      "date": "2010-04-01",
      "open": 0.66,
      "high": 0.66,
      "low": 0.56,
      "close": 0.57,
      "volume": 2000
    }
  ]
}
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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 HCS
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Need to archive this data?

Don't rely on ephemeral endpoints. Automatically sync HCS.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)