🗄️Developer Resource // JSON Endpoint

CMI JSON Data API

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

Access 168 data points for CMI spanning 42 years (1984–May 29, 2026). Optimized JSON format (24.6 KB).

Route this JSON into your sovereign workspace — command the Terminal.
Endpoint-first sovereignty: no shared warehouse of your raw ledger.

Download as CSV

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

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

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

Start Free — Local First
{
  "symbol": "CMI",
  "timestamp": "2026-05-30T14:47:37.198Z",
  "price": 646.63,
  "change_24h": -3.2975414248968047,
  "history_sample": [
    {
      "date": "1984-11-01",
      "open": 9.72,
      "high": 11.06,
      "low": 9.53,
      "close": 10.84,
      "volume": 9350400
    },
    {
      "date": "1985-02-01",
      "open": 10.84,
      "high": 11.03,
      "low": 7.67,
      "close": 7.94,
      "volume": 22868800
    }
  ]
}
💻

Import via CLI

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

npx pocket-portfolio --import CMI
🛡️

Need to archive this data?

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