Trading APIs
Low-latency, scalable REST and WebSocket APIs for order management, market data streaming, and portfolio access — powering terminals, algos, automation, and third-party integrations across colo and non-colo environments.
REST
& WebSocket APIs
Low-Latency
Order Execution
Colo & Non-Colo
Environments
Multi-Broker
Support
Capabilities
One API. Every Capability
Your System Needs.
REST for control. WebSocket for speed. Built for production workloads across algorithms, terminals, and third-party integrations.
Low-Latency REST & WebSocket
REST APIs for order management and portfolio access, and WebSocket streams for real-time market data. Both built for minimal round-trip latency — suitable for co-location and non-co-location environments.
Order Management
Place, modify, and cancel orders across instruments and exchanges through a single unified API. Supports market, limit, SL, bracket, cover, and iceberg order types with full lifecycle tracking.
Market Data Streaming
Subscribe to real-time tick feeds, order book depth, OHLC candles, and option chain data via WebSocket. Configurable depth levels and update frequencies to match your system's requirements.
Portfolio & Positions
Access live portfolio data, position summaries, margin utilisation, and P&L via REST endpoints. Designed for terminals, dashboards, and risk systems that need a reliable real-time state of accounts.
Algo & Automation Ready
Clean, well-documented endpoints designed to plug directly into algorithmic trading engines, strategy runners, and automated workflows — with rate limits and error handling built for production workloads.
Multi-Broker Support
A single API layer across multiple brokers and exchanges. Switch or combine brokers without changing your integration — ideal for prop desks, fund managers, and platforms serving multiple broker relationships.
How It Works
From API Keys to Production
in Under an Hour
01
Get your API keys
Sign up and generate secure API credentials with granular permissions — scoped to the exact capabilities your use case requires.
02
Integrate in minutes
Use our SDKs and comprehensive documentation to connect your systems. Most integrations go from zero to first live order in under an hour.
03
Go live with confidence
Test in the sandbox environment, then deploy to production. Scale without infrastructure changes — enterprise-grade reliability backed in.
Deep Dive
What the API Gives You
One integration for the full trading lifecycle
REST APIs for Orders, Portfolio, and Account Management
The REST API covers everything from order entry to account data. Place, modify, and cancel orders across any supported exchange and instrument type — all through a single authenticated endpoint layer. Portfolio positions, margins, and trade history are accessible in real-time for downstream systems.
Tick-level data with configurable depth and frequency
WebSocket Streams for Real-Time Market Data
The WebSocket API delivers tick-by-tick market data, full order book depth, OHLC candles, and option chain updates in real-time. Subscriptions are configurable per instrument — so your system only receives the data it needs, at the resolution it requires.
Production-ready from day one
Built for Algo Engines, Terminals, and Third-Party Integrations
The API is designed with real production workloads in mind — not just demos. Consistent error codes, idempotent request handling, rate limit headers, and a full sandbox environment mean your integration is robust before a single live order is placed.
Testimonials
Used by Algo Desks,
Platforms, and Prop Firms
“We integrated the Trading APIs into our algorithmic engine in under two days. The documentation is genuinely comprehensive, the sandbox matched production behaviour exactly, and the WebSocket feeds have been rock-solid in live markets.”
Algo Trading Firm
Technology Partner
FAQs
Frequently Asked Questions
Get Started
Start Building
on OptionX APIs
- Low-latency REST and WebSocket APIs
- Order management across all major order types
- Real-time market data streaming with configurable depth
- Multi-broker support from a single integration
- Full sandbox for testing before going live
Colo and non-colo environments supported
REST
Order management
WebSocket
Market data streams
Sandbox
Full test environment
Multi-Broker
Single integration
Python & JS
SDKs available
Colo Ready
Low-latency endpoints