🗄️Developer Resource // JSON Endpoint

CYAN JSON Data API

Access 420 data points for CYAN spanning 35 years (1991–Apr 28, 2026). Optimized JSON format (61.5 KB).

Chart where your browser is the vault — wire this endpoint to the Terminal.
Minimal cloud, maximal local control — start from this stateless slice.

Download as CSV

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

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

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

Start Free — Local First
{
  "symbol": "CYAN",
  "timestamp": "2026-04-29T11:28:53.924Z",
  "price": 0.39,
  "change_24h": 0,
  "history_sample": [
    {
      "date": "1991-06-01",
      "open": 2.5,
      "high": 4.5,
      "low": 2.5,
      "close": 3.5,
      "volume": 13475
    },
    {
      "date": "1991-07-01",
      "open": 3.5,
      "high": 4.5,
      "low": 3.5,
      "close": 3.75,
      "volume": 16975
    }
  ]
}
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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 CYAN
🛡️

Need to archive this data?

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