🗄️Developer Resource // JSON Endpoint

CERS JSON Data API

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

Access 355 data points for CERS spanning 30 years (1997–Jul 24, 2026). Optimized JSON format (52.0 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 CERS historical data as a CSV file for Excel, Google Sheets, or any spreadsheet application.

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

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

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{
  "symbol": "CERS",
  "timestamp": "2026-07-24T22:28:10.197Z",
  "price": 2.93,
  "change_24h": 2.0905923344947754,
  "history_sample": [
    {
      "date": "1997-02-01",
      "open": 12.38,
      "high": 12.38,
      "low": 7.75,
      "close": 9.88,
      "volume": 2082100
    },
    {
      "date": "1997-03-01",
      "open": 10.13,
      "high": 11.88,
      "low": 9.13,
      "close": 10.88,
      "volume": 631500
    }
  ]
}
💻

Import via CLI

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

npx pocket-portfolio --import CERS
🛡️

Need to archive this data?

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