post
https://sandbox.nmi.com/api/v4/usernames/search
Usage
This is optional, but you can check to make sure a username is available before submitting your merchant creation request.
This can be useful if you want to do form validation on your website to prevent the user from entering a username that has already been taken.
Recent Requests
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| Time | Status | User Agent | |
|---|---|---|---|
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