EPAM B2BITS FIX Client Simulator allows initiating and accepting FIX sessions, exchanging and editing FIX messages. The tool is based on .NET technologies and can be used to simulate FIX buy and/or sell side end points. Built on top of the FIX Antenna® engine FIX Client Simulator shares all its common features and benefits. The tool also uses B2BITS' FIXopaedia as a FIX reference source and provides complete support of all standard and custom FIX dictionaries.

Key Features:

  • Establishes multiple acceptor/initiator sessions, including via TCP and using TLS
  • Supports all FIX message types (pre-trade, trade, post-trade, market data, etc.)
  • Supports FIX versions 4.0 - 5.0 SP2 and dialects (custom messages, tags and custom values)
  • Supports FIX Antenna and Quickfix dictionary formats
  • Allows writing new, open, edit and search in saved raw FIX messages 
  • Allows sending a single message or batch of selected messages from a window or a file (load, modify, and send a file)
  • When sending/replaying messages, allows setting/auto-incrementing values for configured tags, and overriding Sender and Target CompIDs  
  • Allows repeating the sending of messages in a loop for a given number of times
  • Allows setting and out sequence numbers for FIX sessions
  • Allows visualizing sent and received messages in separate tabs and filtering them by message types
  • Supports stress test scenarios by allowing message replay at the rate they were sent originally or with a set parameter rate

Additional Functionality:

The FIX Client simulator has additional functionalities to accommodate a variety of use cases.

  • Optional message validation for both incoming and outgoing messages (i.e. wellformness, required and conditionally required fields, fields order, types, etc.)
  • Supports Acceptor sessions for arbitrary (not preconfigured) Initiators
  • Supports a wide range of FIX session settings including Custom Logon messages

The FIX Client Simulator is provided as a simple zip archive. The package contains messages samples and an example of a custom dictionary.

A short introduction video to FIX tools, including the FIX Client Simulator, can be found here.

Please contact us at sales@b2bits.com to obtain the free trial version of FIX Client Simulator or for any additional information.