🗄️Developer Resource // JSON Endpoint

GPN JSON Data API

Absolute endpoints (copy‑paste)
JSON:https://www.pocketportfolio.app/api/tickers/GPN/json?range=max
CSV:https://www.pocketportfolio.app/api/tickers/GPN/csv?range=max

Access 307 data points for GPN spanning 26 years (2001–Jul 27, 2026). Optimized JSON format (45.0 KB).

Chart where your browser is the vault — wire this endpoint to the Terminal.
Minimal cloud, maximal local control — start from this stateless slice.

Download as CSV

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

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

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

Start Free — Local First
{
  "symbol": "GPN",
  "timestamp": "2026-07-27T15:47:17.808Z",
  "price": 83.59,
  "change_24h": 3.299555116164115,
  "history_sample": [
    {
      "date": "2001-02-01",
      "open": 4.75,
      "high": 5.36,
      "low": 4.35,
      "close": 4.75,
      "volume": 15188800
    },
    {
      "date": "2001-03-01",
      "open": 4.72,
      "high": 4.78,
      "low": 4.06,
      "close": 4.63,
      "volume": 12694000
    }
  ]
}
💻

Import via CLI

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

npx pocket-portfolio --import GPN
🛡️

Need to archive this data?

Don't rely on ephemeral endpoints. Automatically sync GPN.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)
> system_ready. Initialize Sovereign reasoning for this asset?[Y]— open Terminal