Go to https://www.unifonic.com/ and register an account.

To recover the REST API key, please follow the steps below:
- Navigate to https://communication.cloud.unifonic.com/sendername.
- Click on “Add new sender name” and create a Sender Name.
- Navigate to https://communication.cloud.unifonic.com/application/new/http
- Choose app name and sender name and add a description.
- Click on Save.
- Copy the key (see image below).

Note: The Unifonic Endpoint can be: api.unifonic.com or basic.unifonic.com.