tradingview-mcp

An MCP server for the crypto chart-analysis workflow described in config/rules.json: it pulls candles, computes the indicators you care about, and evaluates your bias and risk rules against them.

Design note: why this does not attach to TradingView

The setup guide this started from drove the TradingView desktop app over the Chrome DevTools Protocol (--remote-debugging-port=9222). That approach hands the server full control of a browser session you are logged into — it can read your account, not just your charts.

Nothing in rules.json needs it. Binance spot pairs, 1W/1D/4H candles, RSI, MACD, EMAs and volume are all available from public endpoints with no authentication. So this server reads public market data, holds no credentials, and never touches a logged-in session.

The one thing the CDP approach would buy you is data this cannot reach: your saved layouts and drawings, paid indicators, and exchange feeds you subscribe to. If you need those, that is the tradeoff to reopen deliberately.

Install

npm install
npm test          # 46 unit + integration tests, no network required
npm run smoke     # live end-to-end check against the real API

Register it with Claude Code by merging config/mcp-entry.json into ~/.claude.json, replacing <HOME> with your home directory:

{
  "mcpServers": {
    "tradingview": { "command": "node", "args": ["<HOME>/tradingview-mcp/src/server.js"] }
  }
}

If mcpServers already exists, add the tradingview key to it rather than replacing the object.

Point the server at a different rules file with TRADINGVIEW_MCP_RULES=/path/to/rules.json.

Tools

Tool	What it does
tv_health_check	Config + data source reachability. Reports ready: false rather than failing.
get_rules	The loaded rules.json, including resolved defaults.
get_price	Latest traded price.
get_candles	Raw OHLCV, oldest first.
get_indicators	RSI, MACD, trend EMA, 200 EMA, volume, market structure.
get_bias	Bias for one symbol/timeframe, with every condition shown.
scan_watchlist	Bias across the whole watchlist and all timeframes.
get_macro_snapshot	Current CRYPTOCAP TOTAL / TOTAL3 / BTC.D.
check_risk	Position size and R:R from your risk rules.

How bias is decided

bias_criteria in rules.json is prose — useful for a human and for the model, but not machine-parseable. The numeric thresholds that actually drive get_bias live in bias_engine, so the two are kept deliberately in sync.

A symbol is bullish only when all three hold: price above the trend EMA, daily RSI inside the bull band, and market structure showing higher highs and higher lows. Bearish is the mirror. Anything else is neutral.

get_bias always returns the individual condition results alongside the label, so you can see why — and if an input is unavailable (for example a 200 EMA on a pair without 200 bars of history) it returns unknown with the reason rather than a number it cannot support.

Two deliberate consequences worth knowing:

• RSI above 70 is not bullish. Your band tops out at 70, so a vertical melt-up reads as neutral, not as a long signal.
• The RSI gate always comes from the daily, even when judging the 4H, because rules.json specifies the RSI condition "on daily".

The EMA period

Your original rules had a contradiction: all three bias_criteria referenced a 500 EMA, while indicators_i_care_about listed only the 50 and 200. I set bias_engine.trend_ema_period to 50, matching your indicator list — a 500 EMA on the weekly would need roughly a decade of candles, which most of these pairs do not have.

If you meant 500, it is a one-line change in config/rules.json, and the unknown path means you will get an honest "not enough history" rather than a silently wrong answer.

Data sources and their limits

Binance public REST for spot pairs; CoinGecko /global for the CRYPTOCAP aggregates.

The CRYPTOCAP entries are current values only — free market-cap history is not available, so get_indicators and get_bias refuse them rather than inventing a series. scan_watchlist skips them and lists them under skipped_macro. TOTAL3 is derived as TOTAL x (1 - BTC.D - ETH.D).

Binance geo-blocks some regions. If tv_health_check reports unreachable from a network you expect to work, that is the first thing to check.

Testing

npm test runs entirely offline: the indicator math is verified against Wilder's published RSI reference values, and the MCP layer is driven by a real client over an in-memory transport with a stubbed data source.

npm run smoke is the part that needs real network — it launches the server over stdio the way a client does and calls the live API.

Not financial advice

This reports what your own rules say about public data. It does not decide anything for you, and the no_trades_during windows in rules.json are surfaced as reminders, not enforced — nothing here checks an economic calendar.