🗄️Developer Resource // JSON Endpoint
OPEN JSON Data API
Access 307 data points for OPEN spanning 6 years (2020–Apr 22, 2026). Optimized JSON format (45.0 KB).
Programmable Sovereign Interface — chart this JSON in the Terminal.
Local-first analysis. Stateless data. Your browser is the vault.
Download as CSV
Prefer CSV format? Download OPEN historical data as a CSV file for Excel, Google Sheets, or any spreadsheet application.
GET /api/tickers/OPEN/json● 200 OK (Live)Tired of exporting to Excel? Track OPEN and analyze your portfolio locally with Pocket Portfolio.
Start Free — Local First{
"symbol": "OPEN",
"timestamp": "2026-04-22T17:34:29.083Z",
"price": 5.315,
"change_24h": -2.477064220183482,
"history_sample": [
{
"date": "2020-06-15",
"open": 10.75,
"high": 11.5,
"low": 10.7,
"close": 10.93,
"volume": 532100
},
{
"date": "2020-06-22",
"open": 11.11,
"high": 12.82,
"low": 10.9,
"close": 11.28,
"volume": 1388200
}
]
}💻
Import via CLI
Don't scrape. Use our open-source importer to normalize this dataset directly into your local database.
npx pocket-portfolio --import OPEN🛡️
Need to archive this data?
Don't rely on ephemeral endpoints. Automatically sync OPEN.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)