Below are the steps to create Nexmo API credentials
1.Click the below link to Sign Up your account
2.Click the Sign Up option in the top right corner.
3.Sign Up to the account by filling the required details in the form.
4.After Login to your account, you have your unique key and secret code.
5.Use the key in your code or add the code given in your account.
6.For Test account, add your number in the “Numbers” option. You can add upto 10 numbers for test account.
7.Make sure that the added numbers are used for test verification.
8.Once you make the payment, then you can send verification code to unlimited users.