This page is only for sandbox
Click on 'Set parameters' and fill in your client_id, client_secret and tenant_id.
Read more on where to find these parameters in the documentation.
After submitting the form you can fetch an access token by clicking on the 'Get access token' button.
This token is only valid for 60 minutes and has to be re-fetched after this time.
When a valid access token is present, the badge in the top right of the page will turn green and display 'API access'.
At this moment, the button to make an API call, in the right section, will be enabled.
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