Launch AppUtility
🗄️Developer Resource // JSON Endpoint

CLNN JSON Data API

Access 388 data points for CLNN spanning 8 years (2018–Mar 13, 2026). Optimized JSON format (56.8 KB).

Download as CSV

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

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

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{
  "symbol": "CLNN",
  "timestamp": "2026-03-15T05:19:19.948Z",
  "price": 5.72,
  "change_24h": -3.378378378378381,
  "history_sample": [
    {
      "date": "2018-10-15",
      "open": 195,
      "high": 195,
      "low": 195,
      "close": 195,
      "volume": 0
    },
    {
      "date": "2018-10-22",
      "open": 194,
      "high": 195,
      "low": 194,
      "close": 195,
      "volume": 2880
    }
  ]
}
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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 CLNN
🛡️

Need to archive this data?

Don't rely on ephemeral endpoints. Automatically sync CLNN.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)