crypto-signal-api
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Real-time cryptocurrency trading signals powered by technical analysis. Fetches live data from Binance and computes RSI, MACD, EMA, Bollinger Bands, Stochastic RSI, ATR, and volume analysis to generate actionable BUY/SELL/HOLD signals.
No API key required — uses Binance public market data.
Quick Start
npm install
npm start # REST API on http://localhost:3100
npm run mcp # MCP server (stdio, for AI agents)
REST API Endpoints
GET /api/v1/signal/:symbol
Combined trading signal with full indicator breakdown.
curl http://localhost:3100/api/v1/signal/BTCUSDT
curl http://localhost:3100/api/v1/signal/ETHUSDT?interval=4h
Response:
{
"symbol": "BTCUSDT",
"interval": "1h",
"signal": {
"action": "BUY",
"strength": "moderate",
"confidence": 58,
"score": 4,
"details": [...]
},
"indicators": {
"price": 87250.50,
"rsi": 35.2,
"macd": { "MACD": -120.5, "signal": -95.3, "histogram": -25.2 },
"ema": { "ema9": 87100, "ema21": 87400, "ema50": 88200 },
"bollingerBands": { "upper": 89500, "middle": 87800, "lower": 86100 },
"stochRsi": { "k": 15.3, "d": 18.7 },
"atr": 850.5,
"volume": { "current": 1250.5, "average": 980.3, "ratio": 1.28 }
}
}
GET /api/v1/indicators/:symbol
Technical indicators only (no signal).
GET /api/v1/candles/:symbol
Raw OHLCV candle data.
| Param | Default | Description |
|---|---|---|
interval | 1h | 1m, 5m, 15m, 1h, 4h, 1d |
limit | 100 | Max 500 |
GET /api/v1/screener
Scan top coins by volume with signals for each.
curl http://localhost:3100/api/v1/screener?limit=10&interval=4h
MCP Server (for AI Agents)
Run as an MCP tool server over stdio:
node src/mcp-server.js
Available Tools
| Tool | Description |
|---|---|
get_crypto_signal | Trading signal + indicators for a pair |
get_crypto_indicators | Detailed technical indicators |
screen_crypto_market | Scan top coins with signals |
Claude Desktop Config
{
"mcpServers": {
"crypto-signals": {
"command": "node",
"args": ["/path/to/crypto-signal-api/src/mcp-server.js"]
}
}
}
Signal Logic
| Score | Action | Strength |
|---|---|---|
| ≥ +4 | STRONG_BUY | strong |
| +2 to +3 | BUY | moderate |
| -1 to +1 | HOLD | weak |
| -2 to -3 | SELL | moderate |
| ≤ -4 | STRONG_SELL | strong |
Indicators scored: RSI, MACD histogram, EMA alignment, Bollinger Band position, Stochastic RSI, Volume ratio.
License
MIT
Related projects
- 🧰 lazymac-mcp — Single MCP server exposing 15+ lazymac APIs as tools for Claude Code, Cursor, Windsurf
- ✅ lazymac-api-healthcheck-action — Free GitHub Action to ping any URL on a cron and fail on non-2xx
- 🌐 api.lazy-mac.com — 36+ developer APIs, REST + MCP, free tier
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