Nexmo API Settings
Coinwink is not charging anything for SMS service, but you need to provide your own SMS API details. To get these, you need to sign up on Nexmo or Plivo service. The sign up is free and they give 2$ free SMS credit. The free credit works only with the single number that is linked to your Nexmo or Plivo account.
For both Nexmo and Plivo, you will find your API details on the first page after you log in to your Nexmo or Plivo account. Enter these API details here and click Save button. Then you can start using SMS alerts service.
Please enter details for at least one SMS service provider. You can also enter details for both. When sending alerts, Coinwink first checks Nexmo, if the service is not configured or unavailable, then it tries to use Plivo. In any case, Coinwink will always use only 1 service - the first one that's available.
Coinwink cannot check if you entered the correct settings. If you are not sure, please create a test alert first. Coinwink is sending alerts every 3 minutes.
For the USA you need to buy a virtual number in order to receive alerts. This can be done easily on Nexmo. You will then receive SMS alerts. For other countries there can be some other specific restrictions. If you do not receive alerts, please send and email to firstname.lastname@example.org and we will try to find a solution.
For a quick step-by-step guide how to set up alerts (USA included), please see this Medium post.