You can find your Nexmo API Keys by login into your Nexmo account and copy your Key and Secret.
- Login into your Twilio account.
- Copy your Account SID and Auth Token.
- Select the # to go to the Phone Numbers menu and copy the phone number that you will enter in your General Settings as Sender phone number.
- Login into your Fast2SMS account.
- Go to Dashboard > Dev API and Copy your API Authorization Key.
- Go to Dashboard > Bulk SMS and Copy Sender ID. You will enter in your General Settings as Sender ID.