Developer REST & WebSocket API Hub

Quantitative Market Data & Telemetry API

Connect your trading bots, screening pipelines, and execution engines to sub-100ms algorithmic feeds. High-precision EMA 9/20, session VWAP bands, regime classifiers, and live signals for $9.99/mo.

Developer License

$9.99 /month (R179.82 ZAR)

Instant key issuance via PayFast checkout

Starter Downloads:Jupyter Backtest Notebook (.ipynb)Historical Data Starter Pack (.zip)

API Endpoints Specification

Authentication Header

Pass your API key as a Bearer token in the standard HTTP Authorization header:

Authorization: Bearer YOUR_API_KEY

GET/api/v1/trading/indicators/ema

Calculates high-precision EMA 9 and EMA 20 indicators, crossover signals, and slope momentum for any crypto or equity asset.

Request Parameters

symbolstringRequired

Asset trading pair symbol (e.g., BTC/USD, ETH/USD, NVDA)

default: BTC/USD

intervalstringOptional

Candle timeframe: 1m, 5m, 15m, 1h, 4h, 1d

default: 1h

fast_periodnumberOptional

Fast EMA span (default: 9)

default: 9

slow_periodnumberOptional

Slow EMA span (default: 20)

default: 20

Code Snippets

curl -X GET "https://api.kustomcode.xyz/api/v1/trading/indicators/ema?symbol=BTC%2FUSD&interval=1h&fast_period=9&slow_period=20" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Accept: application/json"

Sample JSON Response (200 OK)application/json

{
  "symbol": "BTC/USD",
  "interval": "1h",
  "timestamp": "2026-08-30T13:30:00Z",
  "latest_close": 67420.5,
  "ema_9": 67210.4,
  "ema_20": 66890.15,
  "crossover": "BULLISH_CROSS",
  "spread_pct": 0.479,
  "status": "HIGH_MOMENTUM"
}