API Base URLs and Authentication Methods

Learn about the different Base URL options for use in the Modulr Sandbox

Within the Sandbox environment there are two authentication methods available:

If you are accessing our API directly from your code and have set-up HMAC (Instructions here) on how to calculate the hmac value are here: Authentication), the URL you should use for the Modulr API sandbox environment is:

• https://api-sandbox.modulrfinance.com/api-sandbox/

If you wish to try our API's without first setting up HMAC, you can use our token URL instead:

• https://api-sandbox.modulrfinance.com/api-sandbox-token/

❗️

Authentication in Production

HMAC is the only authentication method used in Production. Use of the token is only in our Sandbox environment.

You will be provided with the production environment URL during onboarding to the production service.

Failing to use the correct URLs may result in requests being rejected or silently ignored

There can be additional onboarding processes for certain functionality:
Getting started with DD collections →
Getting started with Virtual Cards →