Brex SDK for PHP: User and Developer Manual


This is an (unofficial) SDK to allow PHP applications to quickly use the Brex REST API to accomplish all common banking tasks available from the API. Through Code Generation we currently support full API coverage.

You will, of course, need to be a Brex client to get any use from this library.


CAUTION: This is financial software. The nature of the Brex API means that most usage will involve dealing with highly sensitive financial data and/or money transfers. You are entirely responsible for ensuring that proper security measures are implemented to protect your property (money and information). Please observe the LICENSE (and its disclaimer), and thoroughly understand An Admonishment Regarding Security (and the limitations of this implementation).


This SDK provided to you under the MIT License. You generally permitted to deal in this software without restriction. Please refer to the file above for the full license text.

Copyright (c) 2023 Nexus Systems, Inc. Any rights not expressly granted herein are reserved.

“Brex” is a registered trademark of Brex, Inc. Use of the Brex API is subject to the Brex Access Agreement.


The following communication channels are open:

If you have any additional feedback, or commercial inquiries, please reach out to us at

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