🗄️Developer Resource // JSON Endpoint
GEM JSON Data API
Access 128 data points for GEM spanning 11 years (2015–Apr 22, 2026). Optimized JSON format (18.8 KB).
Route this JSON into your sovereign workspace — command the Terminal.
Endpoint-first sovereignty: no shared warehouse of your raw ledger.
Download as CSV
Prefer CSV format? Download GEM historical data as a CSV file for Excel, Google Sheets, or any spreadsheet application.
GET /api/tickers/GEM/json● 200 OK (Live)Tired of exporting to Excel? Track GEM and analyze your portfolio locally with Pocket Portfolio.
Start Free — Local First{
"symbol": "GEM",
"timestamp": "2026-04-22T19:25:53.073Z",
"price": 48.08,
"change_24h": 1.9508057675996646,
"history_sample": [
{
"date": "2015-10-01",
"open": 25.24,
"high": 29.48,
"low": 24.87,
"close": 26.77,
"volume": 1014500
},
{
"date": "2015-11-01",
"open": 26.94,
"high": 27.89,
"low": 25.82,
"close": 25.94,
"volume": 257500
}
]
}💻
Import via CLI
Don't scrape. Use our open-source importer to normalize this dataset directly into your local database.
npx pocket-portfolio --import GEM🛡️
Need to archive this data?
Don't rely on ephemeral endpoints. Automatically sync GEM.json updates to your private Google Drive for backtesting and compliance.
Enable Sovereign SyncIncludes 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)