🗄️Developer Resource // JSON Endpoint

ESP JSON Data API

Access 167 data points for ESP spanning 42 years (1984–Apr 22, 2026). Optimized JSON format (24.5 KB).

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Download as CSV

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

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

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{
  "symbol": "ESP",
  "timestamp": "2026-04-22T20:49:35.517Z",
  "price": 71.4,
  "change_24h": 2.1313116864540254,
  "history_sample": [
    {
      "date": "1984-12-01",
      "open": 10.38,
      "high": 12.5,
      "low": 10.25,
      "close": 11.81,
      "volume": 370200
    },
    {
      "date": "1985-03-01",
      "open": 11.81,
      "high": 12.13,
      "low": 9.06,
      "close": 11.31,
      "volume": 362400
    }
  ]
}
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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 ESP
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Need to archive this data?

Don't rely on ephemeral endpoints. Automatically sync ESP.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