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Note:Important Note: To use the PEX API, your organization must have an active administrator account with PEX and be approved for API access.
To be approved for API access, please follow the steps below:
1
Register for a developer account with PEX at https://developer.pexcard.com
  • Important Note: You will need to provide the business name exactly as it matches the business name listed on the business settings screen on the administrator site
  • You will also need to provide the username for your API user. We recommend you create a new administrator account to use solely with the API. For details on how to create a new administrator, please see “How to Create Business Administrators ”
2
You will receive an email with a test business administrator username and password for use in the Sandbox environment
3
Log in to the developer site with your developer account credentials
4
Click on the Dashboard tab
5
On the right of the Dashboard, you will see your “Client Id” and “Client Secret”. Click the link below titled “Manage your keys”.
  • Important Note: The default keys shown are for use in the Sandbox. These can be used in conjunction with the Sandbox admin username and password, sent to you in the email in step 2.
6
Once you have finished development in Sandbox, email adminsupport@pexcard.com, requesting a review of your application and applying for access to Production.
7
After your application has been reviewed and Production access approved, under the “Manage your keys” section, you will see a new client ID and Secret to be used in production.
Frequently Asked Questions
You may also be interested in “Getting Started with the PEX API”.
Last modified on April 22, 2026