API Trading

The LMAX Application Programming Interface (API) technology enables clients to automate FX and CFD trading.

The LMAX Exchange API users benefit from:

FREE Direct Market Access for all LMAX instruments*
Ultra Fast, anonymous execution (over 90% of trades are executed in less than 10ms)
Secure protocol
Access up to 20 levels of current and historical market depth*
Access to a knowledgeable, API technical support team
Ability to place Stop-Loss, Stop-Profit or entry orders
Access to risk-free testing in LMAX demo environment

With messages available in XML/JSON format you can either choose to develop your own wrapper or use our customisable Client Libraries (Java, .NET, FIX) to simplify your integrations.

*Read Terms & Conditions below:

Classic accounts get free API access and API support for 1 month after opening a live account. Thereafter, API access is charged at $60 per calendar month. The API access will remain free if your trading exceeds the following thresholds:
- Deposited funds of $5,000 or base currency equivalent, AND
- Trading 250 contracts (or equivalent of $2.5 million in notional value) per calendar month
Premium and Professional account holders get unlimited free API access and support.
Access up to 20 levels of market data is available to Professional account holders through FIX API.

Requirements

To use the LMAX APIs, you must:

Enter into a license agreement with LMAX - LMAX API Agreement (PDF)
Have access to programmers with the expertise to design and implement complex computer programs in the supported programming languages.

API and Protocol Library

.NET	LMAX .NET API 1.8-26January2012 (ZIP)
FIX	LMAX FIX Protocol Reference Guide TRADING 28November2011 (ZIP)	LMAX FIX Protocol Reference Guide MARKET DATA 28November2011 (ZIP)
Java	LMAX Java API 1.8-26January2012 (ZIP)
LMAX Protocol	Please send an email to apitrading@lmax.com to request our Protocol library
LMAX Instruments	LMAX Instruments (CSV)