Plus500 Futures Technologies WebSocket API (V2)
A single, streaming WebSocket connection for real-time market data, account/position updates and order routing. Messages are encoded with Google Protocol Buffers.
Proto Files: the .proto files define every message and field. This wiki explains the connection model and the common flows. For message field details, see the proto files and the Message Catalog.
Key Capabilities
| Feature | Included | Description |
|---|---|---|
| Real-time Quotes | ✅ | Stream live bid/ask price updates for any instrument. |
| Level 1 Data | ✅ | Access top-of-book best bid and offer (BBO). |
| Level 2 (Market Depth) | ✅ | View up to 10 levels of bid/ask depth. |
| Market by Order (MBO) | ✅ | See individual resting orders in the order book. |
| Trade Feed (Ticker) | ✅ | Get a real-time execution stream of all trades. |
| Order Management | ✅ | Submit, modify, and cancel orders programmatically. |
| Position & Account Monitoring | ✅ | Track open positions, P&L, and margin usage. |
| Instrument Metadata | ✅ | Retrieve contract specs, tick sizes, and margin requirements. |
| Spread Trading | ✅ | Execute spread orders with complex multi-leg strategies. |
| Risk & Margin Data | ✅ | Get real-time margin requirements and risk exposure. |
| Historical Data Requests | ✅ | Fetch recent trade history and market activity. |
| Efficient Binary Encoding | ✅ | Uses Protobuf for low-bandwidth, high-speed messaging. |
| Secure Authentication | ✅ | Ensures safe access with API key-based authentication. |
| Robust Reconnection | ✅ | Auto-reconnect and resume subscriptions on disconnection. |
Why Use This API?
- Fast & Reliable – Designed for high-frequency updates and real-time execution.
- Compact & Efficient – Protobuf minimizes bandwidth, ensuring fast message processing.
- Comprehensive Market Data – Access Level 1, Level 2, and Market by Order data.
- Built for Futures Trading – Includes contract metadata, spread trading, and risk monitoring.
- Scalable & Industry-Proven – Handles thousands of concurrent connections.
- Secure & Encrypted – Uses WSS (WebSocket Secure) over SSL/TLS to protect data.
- Event-Driven & Easy to Integrate – A simple subscription model delivers the data you need.
Developer Guides
| Section | Description |
|---|---|
| Connecting and Authenticating | Instructions on establishing a connection and handling authentication. |
| Market Data & Definitions | How to retrieve market lists, subscribe to quotes, and understand market definition messages. |
| Account Feed | Receiving account, position, and order updates in real time. |
| Order Routing | Submitting orders, supported order types, and handling updates. |
| Pricing and Data Types | Understanding price formatting and how decimal values are represented. |
| Message Catalog | Every message, mapped to its proto definition. |
| Migrating from V1 | What changed from V1 and how to upgrade. |
| Certification and Testing | Development checklist and pre/post-certification requirements. |
| FAQ | Answers to common questions about the API. |