The TypeScript/Node.js client for the cTrader Open API

Trade forex, CFDs, and commodities programmatically. Build trading bots, portfolio dashboards, and AI trading agents.

Unofficial community project · Not affiliated with Spotware 🤝

Getting Started · API Reference · CLI · Examples · For AI Agents

Why ctrader-ts?

There's no official TypeScript SDK for the cTrader Open API. The raw API is a protobuf/WebSocket protocol — powerful but painful to use directly. This library wraps it into a clean, type-safe interface:

import { connect } from "ctrader-ts";

const ct = await connect();
const pos = await ct.buy("EURUSD", { lots: 0.1, sl: { pips: 50 }, tp: { equity: 0.02 } });
await ct.modify(pos.positionId, { sl: { pips: 30 } });  // preserves existing TP
await ct.close(pos.positionId);

What you get:

• Zero boilerplate — connect() handles auth, WebSocket setup, heartbeat, and reconnection
• Human-friendly units — trade in lots, set SL/TP in pips, dollars, or equity %. No unit conversions.
• Full type safety — every method, parameter, and response is typed. No any, no @ts-ignore.
• Auto-retry — rate-limit errors are retried automatically with exponential backoff
• Actionable errors — error messages tell you exactly what went wrong and how to fix it
• AI-agent ready — designed for LLM agents to understand and use without documentation lookup
• CLI included — every operation available from the terminal with --json output
• Live streaming — watchState() pushes real-time balance, equity, and position updates. No polling.

🚀 Getting Started

Install

npm install ctrader-ts

Authenticate

You need a cTrader Open API application. Create one at openapi.ctrader.com/apps, then run:

npx ctrader-ts auth

The interactive wizard walks you through OAuth in 3 steps. Credentials are saved to ~/.config/ctrader-ts/config.json.

Environment variables work too:

export CTRADER_CLIENT_ID=your_client_id
export CTRADER_CLIENT_SECRET=your_client_secret
export CTRADER_ACCESS_TOKEN=your_access_token
export CTRADER_ACCOUNT_ID=12345678
export CTRADER_ENVIRONMENT=demo   # or live

Connect and trade

import { connect } from "ctrader-ts";

const ct = await connect();

// Get a complete account snapshot
const state = await ct.getState();
console.log(`Balance: $${state.balance}, Equity: $${state.equity}`);
console.log(`Open positions: ${state.positions.length}`);

// Each position includes computed convenience fields
for (const pos of state.positions) {
  console.log(`${pos.volumeInLots} lots at ${pos.entryPrice}`);
}

// Place a trade
const pos = await ct.buy("EURUSD", {
  lots: 0.1,
  sl: { pips: 50 },
  tp: { dollars: 25 },
});

console.log(`Opened position ${pos.positionId} at ${pos.price}`);

ct.disconnect();

📦 Library API

Account & Portfolio

// Complete account snapshot — call this first
const state = await ct.getState();
// → { balance, equity, usedMargin, freeMargin, marginLevel, unrealizedPnl,
//     positions (enriched), orders, moneyDigits }

// Trader profile with leverage
const trader = await ct.getTrader();
// → { ...traderFields, leverage: 100 }  (computed from leverageInCents)

// Position + order snapshot
const { positions, orders } = await ct.getPositions();

// Deal and order history (defaults to last 24h)
const { deals } = await ct.getDeals();
const { deals: recentDeals } = await ct.getDeals({ from: Date.now() - 7 * 86400000 });
const { orders: orderHistory } = await ct.getOrders({ from: Date.now() - 86400000 });

// Margin estimation before trading
const { margins } = await ct.getExpectedMargin("EURUSD", [0.1, 0.5, 1.0]);

Live Account Streaming

Stream real-time account state — no polling. Balance, equity, positions, and margin update automatically:

// Watch account state in real-time — handler fires on every change
const stop = await ct.watchState((state) => {
  console.log(`Equity: ${state.equity}, P&L: ${state.unrealizedPnl}`);
  console.log(`Reason: ${state.reason}`);
  // reason: "init" | "execution" | "trader_updated" | "margin_changed" | "spot"
  for (const pos of state.positions) {
    console.log(`  ${pos.volumeInLots} lots, entry: ${pos.entryPrice}`);
  }
});

// Throttle spot updates (default 500ms) to control update frequency
const stop2 = await ct.watchState(handler, { throttleMs: 1000 });

// Stop watching
await stop();

Under the hood, watchState() combines:

• Execution events — position opens, closes, modifications
• Balance events — deposits, withdrawals, swap charges
• Margin events — margin requirement changes
• Spot prices — live bid/ask for computing unrealized P&L and equity

All push-based from the server. Zero polling.

Trading

Market orders — execute immediately, return the opened Position:

const p1 = await ct.buy("EURUSD", { lots: 0.1 });
const p2 = await ct.buy("EURUSD", { lots: 0.05, sl: { pips: 50 }, tp: { pips: 100 } });
const p3 = await ct.sell("USDJPY", { lots: 0.1, sl: { dollars: 30 } });
const p4 = await ct.buy("XAUUSD", { lots: 0.01, sl: { equity: 0.02 } });

Pending orders:

await ct.buyLimit("EURUSD",  { lots: 0.1, limitPrice: 1.0800 });
await ct.sellLimit("EURUSD", { lots: 0.1, limitPrice: 1.1200 });
await ct.buyStop("EURUSD",   { lots: 0.1, stopPrice: 1.1050 });
await ct.sellStop("EURUSD",  { lots: 0.1, stopPrice: 1.0950 });

SL/TP — three ways, zero math

No manual pip calculations. Every order accepts sl and tp in whichever unit makes sense:

| Unit | Example | What it means | |---|---|---| | Pips | { pips: 50 } | 50 pips from entry — symbol-aware (handles JPY, gold, etc.) | | Dollars | { dollars: 25 } | Lose/gain exactly $25 on this trade | | Equity % | { equity: 0.02 } | Risk 2% of your account equity |

The library automatically resolves symbol details and current prices to compute the exact values.

Position Management

Positions use their real cTrader positionId — no invented ID system:

// Modify SL/TP — preserves the other when only one is changed
await ct.modify(pos.positionId, { sl: { pips: 30 } });           // keeps existing TP
await ct.modify(pos.positionId, { tp: { dollars: 50 } });        // keeps existing SL
await ct.modify(pos.positionId, { sl: { pips: 30 }, tp: { dollars: 50 } });  // change both

// Resize — change position volume to a new target
await ct.resize(pos.positionId, 0.2);   // increase to 0.2 lots
await ct.resize(pos.positionId, 0.05);  // decrease to 0.05 lots

// Close — full or partial
await ct.close(pos.positionId);
await ct.close(pos.positionId, { lots: 0.02 });  // partial close

// Bulk operations
await ct.closeSymbol("EURUSD");  // close all EURUSD positions
await ct.closeAll();             // close everything

// Cancel pending order
await ct.cancelOrder(orderId);

Market Data

// Available symbols
const symbols = await ct.getSymbols();

// Full details for a single symbol
const info = await ct.getSymbolInfo("EURUSD");
// → { digits, pipPosition, minVolume, maxVolume, stepVolume, lotSize, swapLong, swapShort, ... }

// Stream live bid/ask — returns an unsubscribe function
const stop = await ct.watchSpots(["EURUSD", "GBPUSD"], (price) => {
  console.log(price.symbol, price.bidDecimal, price.askDecimal);
});
await stop(); // done

// Historical candles
const { trendbars } = await ct.getTrendbars("EURUSD", {
  period: TrendbarPeriod.H1,
  count: 100,
});

// Raw tick data
const { ticks } = await ct.getTickData("EURUSD", {
  type: QuoteType.BID,
  fromTimestamp: Date.now() - 3_600_000,
  toTimestamp: Date.now(),
});

Events

All return an unsubscribe function:

ct.onExecution((e)         => console.log("fill:", e.executionType, e.position?.positionId));
ct.onOrderError((e)        => console.error("order rejected:", e.errorCode));
ct.onTrailingSLChanged((e) => console.log("trailing SL moved to:", e.stopPrice));
ct.onMarginChanged((e)     => console.log("margin updated:", e.usedMargin));
ct.onTokenInvalidated(()   => console.warn("token expired — run ctrader-ts auth"));
ct.onClientDisconnect((e)  => console.warn("server dropped connection:", e.reason));

Raw Protocol Access

Everything the high-level API doesn't expose is available via ct.raw:

ct.raw.trading.marketRangeOrder({ ... });
ct.raw.account.getDynamicLeverage(leverageId);
ct.raw.market.subscribeLiveTrendbar(symbolId, TrendbarPeriod.M1);
ct.raw.auth.refreshToken(refreshToken);

connect() options

const ct = await connect({
  environment: "live",   // override stored environment
  accountId: 12345678,   // override stored account
  accessToken: "...",    // override stored token
});

🖥️ CLI

Every operation available from the terminal. Add --json for pipe-friendly structured output.

# Auth
ctrader-ts auth

# Account
ctrader-ts state                                      # full account snapshot
ctrader-ts positions                                  # open positions + orders

# Trade
ctrader-ts buy  EURUSD 0.1 --sl-pips 50 --tp-pips 100
ctrader-ts sell USDJPY 0.1 --sl-dollars 30
ctrader-ts buy  XAUUSD 0.01 --sl-equity 0.02

# Pending orders
ctrader-ts buy-limit  EURUSD 0.1 1.0800
ctrader-ts sell-limit EURUSD 0.1 1.1200
ctrader-ts buy-stop   EURUSD 0.1 1.1050

# Manage positions
ctrader-ts close 12345678                              # full close
ctrader-ts close 12345678 --lots 0.05                  # partial
ctrader-ts modify 12345678 --sl-pips 30 --tp-dollars 50
ctrader-ts resize 12345678 0.2                         # resize to 0.2 lots
ctrader-ts close-symbol EURUSD
ctrader-ts close-all
ctrader-ts cancel 87654321

# Market data
ctrader-ts symbols                                     # list all symbols
ctrader-ts symbol-info EURUSD                          # full symbol details
ctrader-ts watch EURUSD GBPUSD                         # live prices, Ctrl+C to stop
ctrader-ts bars EURUSD H1 2024-01-01 2024-12-31       # historical candles

# History
ctrader-ts history --from 2024-01-01 --to 2024-12-31

# JSON output for piping
ctrader-ts state --json
ctrader-ts positions --json | jq '.positions[].positionId'

📁 Examples

See the examples/ directory for runnable scripts:

• basic-trade.ts — Open a position with SL/TP, modify the stop loss, close the position
• watch-and-trade.ts — Stream live prices and react to conditions
• portfolio-report.ts — Generate an account report with positions, leverage, and deal history

npx ts-node examples/basic-trade.ts

🤖 For AI Agents

Designed from the ground up for LLM-powered trading agents:

• getState() first — one call gives a complete picture: balance, equity, margin, all positions with volumeInLots and entryPrice, all pending orders
• Human units everywhere — { pips }, { dollars }, { equity } — no protocol encoding knowledge needed
• Real position IDs — every buy()/sell() returns the actual positionId, so modify/resize/close are unambiguous
• Actionable errors — every error includes a hint property with recovery instructions (e.g. "Run ctrader-ts auth to re-authenticate")
• Auto-retry — rate-limit errors retry automatically — agents don't need retry logic
• CLI with --json — agents with shell access get structured output without Node.js in the loop
• llms.txt — machine-readable API reference included in the package

import { connect, CTraderError } from "ctrader-ts";

const ct = await connect();
const state = await ct.getState();
// reason about state.equity, state.positions, state.marginLevel...

try {
  const pos = await ct.buy("EURUSD", { lots: 0.1, sl: { equity: 0.01 } });
  console.log("opened", pos.positionId);
} catch (e) {
  if (e instanceof CTraderError) {
    console.error(e.hint);   // "Your access token has expired. Run `ctrader-ts auth`..."
    if (e.isAuthError)   { /* re-authenticate */ }
    if (e.isRateLimit)   { /* auto-retried, only thrown after 3 failures */ }
    if (e.isMaintenance) { /* server down, try later */ }
  }
}

⚙️ Error Handling

Every error from the cTrader API becomes a typed CTraderError with:

| Property | Type | Description | |----------|------|-------------| | code | string | Machine-readable error code | | description | string | Server-provided description | | hint | string \| undefined | Actionable recovery instructions | | isAuthError | boolean | Token expired / not authenticated | | isRateLimit | boolean | Too many requests (auto-retried first) | | isMaintenance | boolean | Server under maintenance | | retryAfter | number \| undefined | Wait time in ms (rate limit only) |

import { CTraderError, RequestTimeoutError, NotConnectedError } from "ctrader-ts";

try {
  await ct.buy("EURUSD", { lots: 999 });
} catch (e) {
  if (e instanceof CTraderError) {
    console.error(e.message);
    // "[NOT_ENOUGH_MONEY] Insufficient free margin — Reduce position size or close
    //  existing positions to free up margin."
  }
}

🔄 Reliability

Auto-Reconnection

Connection drops are handled automatically:

• Reconnects with exponential backoff (2s → 60s max)
• Re-authenticates after reconnect (app + account auth)
• Restores all active spot / depth / trendbar subscriptions

Auto-Retry on Rate Limit

Rate-limit errors (REQUEST_FREQUENCY_EXCEEDED) are retried automatically:

• Exponential backoff: 1s → 2s → 4s
• Uses server-provided retryAfter when available
• Up to 3 retries before throwing to your code

No user code needed for either.

🏗️ Architecture

connect()  →  CTrader (high-level, human-friendly API)
  └─ CTrader
       ├─ connection → CTraderConnection (TLS/TCP, heartbeat, reconnect, auto-retry)
       └─ raw
            ├─ auth    → CTraderAuth (app/account auth, token management)
            ├─ trading → CTraderTrading (order CRUD, execution events)
            ├─ account → CTraderAccount (balance, history, margin)
            └─ market  → CTraderMarket (symbols, spots, trendbars, depth)

| Layer | When to use | |-------|------------| | ct.buy(), ct.getState() | Most of the time — clean API, human units | | ct.raw.trading.* | Need parameters the high-level API doesn't expose | | ct.connection.* | Direct WebSocket control, custom event handling |

📜 License

MIT — use it however you want.

npm · GitHub · cTrader Open API Docs