🗄️Developer Resource // JSON Endpoint

AMST JSON Data API

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

Access 306 data points for AMST spanning 6 years (2020–Jul 24, 2026). Optimized JSON format (44.8 KB).

Private ledger analysis — connect this API slice to the Terminal.
Keep sensitive rows off shared analyst lakes — bounded, explicit flows.

Download as CSV

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

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

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

Start Free — Local First
{
  "symbol": "AMST",
  "timestamp": "2026-07-24T22:29:00.302Z",
  "price": 0.9899,
  "change_24h": 3.9920159680638756,
  "history_sample": [
    {
      "date": "2020-09-21",
      "open": 59.4,
      "high": 78.96,
      "low": 54.6,
      "close": 62.64,
      "volume": 176300
    },
    {
      "date": "2020-09-28",
      "open": 60.12,
      "high": 62.15,
      "low": 50.46,
      "close": 57.24,
      "volume": 68501
    }
  ]
}
💻

Import via CLI

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

npx pocket-portfolio --import AMST
🛡️

Need to archive this data?

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