🗄️Developer Resource // JSON Endpoint

COF JSON Data API

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

Access 380 data points for COF spanning 32 years (1994–Jun 5, 2026). Optimized JSON format (55.7 KB).

Programmable Sovereign Interface — chart this JSON in the Terminal.
Local-first analysis. Stateless data. Your browser is the vault.

Download as CSV

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

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

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

Start Free — Local First
{
  "symbol": "COF",
  "timestamp": "2026-06-07T05:17:23.155Z",
  "price": 180.67,
  "change_24h": -1.3810043668122278,
  "history_sample": [
    {
      "date": "1994-12-01",
      "open": 5.13,
      "high": 5.42,
      "low": 4.63,
      "close": 5.33,
      "volume": 4161300
    },
    {
      "date": "1995-01-01",
      "open": 5.38,
      "high": 5.46,
      "low": 5.13,
      "close": 5.4,
      "volume": 2649900
    }
  ]
}
💻

Import via CLI

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

npx pocket-portfolio --import COF
🛡️

Need to archive this data?

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