🗄️Developer Resource // JSON Endpoint

CASS JSON Data API

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

Access 359 data points for CASS spanning 30 years (1996–May 29, 2026). Optimized JSON format (52.6 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 CASS historical data as a CSV file for Excel, Google Sheets, or any spreadsheet application.

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

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

Start Free — Local First
{
  "symbol": "CASS",
  "timestamp": "2026-05-31T10:45:09.426Z",
  "price": 46.03,
  "change_24h": -0.5616763879887622,
  "history_sample": [
    {
      "date": "1996-08-01",
      "open": 4.43,
      "high": 4.52,
      "low": 4.34,
      "close": 4.34,
      "volume": 49808
    },
    {
      "date": "1996-09-01",
      "open": 4.34,
      "high": 4.55,
      "low": 4.34,
      "close": 4.52,
      "volume": 102106
    }
  ]
}
💻

Import via CLI

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

npx pocket-portfolio --import CASS
🛡️

Need to archive this data?

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