TradeSim - Realistic Market Data

What it does

Building a trading UI? Tired of paying for market data APIs just to test your dashboard? trade-data-generator generates realistic synthetic market data for equity, forex and crypto. → Price ticks with mean reversion → Order book depth (bid always below ask) → OHLCV candles — multiple intervals → Market hours for equity and forex → EventEmitter API — any WebSocket server → Zero dependencies → TypeScript support 836 downloads. MIT license. Node.js 14+ See it live at tradesim.dev/demo

trade-data-generator — Generate realistic market data for trading UIs. Equity, forex and crypto. Zero dependencies. EventEmitter API.

Simulation for development. Real exchange data for production. Same API. Same format. One library. const { MarketFeed } = require ( 'trade-data-generator' ) // Development — fake data const feed = new MarketFeed ({ source: 'simulation' , type: 'crypto' , pairs: [{ symbol: 'BTC/USDT' , startPrice: 45000 }] }) // Production — real Binance data (one line change) const feed = new MarketFeed ({ source: 'binance' , type: 'crypto' , pairs: [{ symbol: 'BTC/USDT' }] }) feed. on ( 'tick' , (data) => { /* your WebSocket */ }) feed. on ( 'candle' , (data) => { /* OHLCV candle */ }) feed. on ( 'depth' , (data) => { /* order book */ }) feed. start () 1.3k+ Monthly downloads 0 Dependencies 3 Market types…from tradesim.dev

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