modbender Crypto Simulator
Backtest and simulate cryptocurrency trading strategies using real market data.
Quick Start
cd {skill_dir}
npm install && npm run build
# Backtest a strategy
node dist/cli.js backtest --coin bitcoin --strategy rsi_swing --days 90
# Compare all strategies
node dist/cli.js compare --coin ethereum --days 180
# Optimize parameters
node dist/cli.js optimize --coin bitcoin --strategy rsi_swing
# Start REST API
node dist/cli.js serve --port 3002
Strategies
| Strategy | Best For | Logic |
|---|---|---|
| RSI Swing | Volatile markets | Buy RSI < 30, sell RSI > 70 |
| DCA | Long-term | Fixed-interval buys |
| MA Cross | Trending | Buy/sell on MA crossovers |
| Grid | Ranging | Orders at price grid levels |
| HODL | Bull markets | Buy-and-hold baseline |
| Bollinger Bands | Mean reversion | Trade on band breakouts |
| MACD | Momentum | Signal line crossovers |
| Mean Reversion | Ranging | Buy below mean, sell above |
Supported coins: BTC, ETH, SOL, DOGE, ADA, DOT, AVAX, LINK, MATIC, XRP
API Endpoints
| Method | Path | Description |
|---|---|---|
GET |
/api/prices/:coinId |
Current & historical prices |
POST |
/api/backtest |
Run backtest |
GET |
/api/compare/:coinId |
Compare all strategies |
POST |
/api/optimize |
Find optimal parameters |
Edge Cases
- CoinGecko rate limits: Free tier = ~10-30 req/min. SQLite cache avoids redundant calls
- Insufficient data: Short timeframes may lack enough data for indicators (e.g., 50-day MA needs 50+ days)
- Slippage: Backtests assume perfect execution — real results will differ
⚠️ Disclaimer
For educational/informational purposes only. Not financial advice. Past performance ≠ future results.
Configuration
| Variable | Default | Description |
|---|---|---|
PORT |
3002 | API server port |
CACHE_DIR |
./data |
SQLite cache directory |
Requirements
- Node.js 18+
- Internet connection (CoinGecko API)
- No API keys needed (free tier)