NOTE: LSEG has reviewed our ongoing technology programmes and determined that we will deliver better outcomes for you by making some modifications to our approach. This is so we can best meet your needs in the coming years. 

Changes will be made to our APIs and associated documentation over the next few months reflecting the programme changes communicated on 2 December 2024. For any clarifications please email FXTAM@lseg.com.  

The FX Trading - Matching API supports the FIX protocol version 5.0 SP2. The API includes a specific set of FIX messages, constituent tags, and associated workflows that are supported by the FX Trading - Matching API.

The main workflows covered are:

• Order submission
• Order negotiation
• Order execution
• Order Cancellation/Amendment

Updates

2 December 2024

• Communication to all clients about changes to the programme. Note added to top of page.

2 September 2024

• FIX Reject Codes and Reasons

14 August 2024

• Overview and Concepts - Randomisation mechanism

7 August 2024

• Testing Services Guide
• LSEG FX Matching Venues Connectivity Options Guide

6 August 2024

• Testing Services Guide

30 July 2024

• Introduction to NDF Matching venues

29 July 2024

• LSEG Matching Global Instrument Reference Data XLSX

23 July 2024

• LSEG FX FIX Reject Codes and Reasons

19 July 2024

• Differences between MAPI and new FX venues Trading API

25 Jun 2024

• FX Trading API Specification (FIX 5.0 SP2)
  

24 June 2024

• LSEG FX Venues Colo Connectivity Technical Deployment Guide

14 June 2024

• FX Trading API Specification (FIX 5.0 SP2)
• Common FIX Descriptions and Messages

13 June 2024

• LSEG FX Matching Venues Connectivity Options Guide
• LSEG FX Venues Colo Connectivity Technical Deployment Guide
  

16 May 2024

• Introduction to MAPI and RFA Spot Adaptors for new FX Trading Venues

15 March 2024

• NDF Matching Instrument Reference Data

15 January 2024

• The Early Integration Development (EID) environment has been discontinued, customers should develop in the Client Development Service (CDS) environment

11 December 2023

• FX Trading API Specification
• Common FIX Descriptions and Messages

22 November 2023

• Testing Services Guide

9 November 2023

• Colo Connectivity Technical Deployment Guide
• LSEG FX  Matching Venues Connectivity Options
  
• NDF Matching Instrument Reference Data

31 October 2023

• FX Trading API & FX Post Trade API Conformance Test Report 
  

24 October 2023

• Testing Services Guide
• FX Trading API & FX Post Trade API Matching Conformance Test Plan
• FX Trading API & FX Post Trade API Conformance Test Report 

16 October 2023

• Trading and Post Trade API Conformance Testing Guide

2 October 2023

• Introduction to cleared NDF venues - changes to URLs for documentation

27 September 2023

• Colo Connectivity Technical Deployment Guide

8 September 2023

• Introduction to cleared NDF venues

7 September 2023

• LSEG FX Matching Venues Connectivity Options

24 August 2023

• Introduction to cleared NDF venues

16 August 2023

• Client Development System (CDS) Internet Connectivity Guide

14 August 2023

• Colo Connectivity Technical Deployment Guide

26 July 2023

• Introduction to cleared NDF venues

18 July 2023

• Introduction to cleared NDF venues

13 July 2023

• FX Trading API Specification
• Common FIX Descriptions and Messages
  

20 June 2023

• FX Trading - Matching Client Sample ZIP

2 June 2023

• FX Swaps Bridge

22 May 2023

• Client Development System (CDS) Environment Connectivity Guide

17 May 2023

• Client Development System (CDS) Environment Connectivity Guide

4 May 2023

• Early Integration Development (EID) Connectivity Guide

25 April 2023 

• FX Trading API Specification
• Differences between MAPI and new FX venues Trading API
• FIX Reject Codes and Reasons
  
• Common FIX Descriptions and Messages