Skip to main content
Version: 0.0.1

Market Data Service API

Real-time and historical market data for True Markets. The service exposes price candles, windowed and point-in-time price history, market capitalization, and prediction-market prices.

Real-time streaming (price candles, trending assets, surging assets, reference prices) is documented separately in the Market Data WebSocket AsyncAPI spec.

Authentication​

All endpoints are public — no authentication or API key is required.

Endpoints​

  • Prices — current candles, windowed and point-in-time history, batched lookups across multiple symbols, and min/max ranges.
  • Market Cap — latest market capitalization for a single asset or for the top assets ranked by market cap.

Time Window & Resolution​

History endpoints accept a window (lookback period) and a resolution (gap between data points). Both use the format {value}{unit}:

  • window units — m minutes, h hours, d days, M months. Examples: 1h, 7d, 1M.
  • resolution units — s seconds, m minutes, h hours, d days. Examples: 5s, 1m, 1h.

Numeric Precision​

Prices, market caps, and other numeric values are returned as strings to preserve full decimal precision and avoid floating-point rounding.

Support​