🗄️Developer Resource // JSON Endpoint

CMC JSON Data API

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

Private ledger analysis — connect this API slice to the Terminal.
Keep sensitive rows off shared analyst lakes — bounded, explicit flows.

Download as CSV

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

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

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

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{
  "symbol": "CMC",
  "timestamp": "2026-04-22T19:24:30.025Z",
  "price": 69.47,
  "change_24h": 2.8880331753554547,
  "history_sample": [
    {
      "date": "1984-12-01",
      "open": 0.81,
      "high": 0.88,
      "low": 0.71,
      "close": 0.86,
      "volume": 9407999
    },
    {
      "date": "1985-03-01",
      "open": 0.86,
      "high": 0.88,
      "low": 0.8,
      "close": 0.84,
      "volume": 5870935
    }
  ]
}
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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 CMC
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Need to archive this data?

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