🗄️Developer Resource // JSON Endpoint

CRON JSON Data API

Access 427 data points for CRON spanning 9 years (2018–Apr 22, 2026). Optimized JSON format (62.5 KB).

Local-first charts from this JSON — open the Terminal.
Parse and visualize without shipping raw ledgers to a vendor database.

Download as CSV

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

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

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

Start Free — Local First
{
  "symbol": "CRON",
  "timestamp": "2026-04-22T20:50:44.560Z",
  "price": 2.8,
  "change_24h": 2.564102564102558,
  "history_sample": [
    {
      "date": "2018-02-26",
      "open": 8.24,
      "high": 10.05,
      "low": 7.17,
      "close": 9.4,
      "volume": 27860300
    },
    {
      "date": "2018-03-05",
      "open": 9.67,
      "high": 10.39,
      "low": 9.09,
      "close": 9.32,
      "volume": 20288100
    }
  ]
}
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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 CRON
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Need to archive this data?

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