We carried on some review on the standards of our API and decided to change our pattern from having users send their account credentials via HTTP POST to something more secure.
The method for authentication in our API has been changed to be based on the use of the token and key fields described better in the API website at http://app.mobi2sms.com.
Check out the API Manual and feel free to let us know any concerns you might have. The APIs have been tested and launched.
We hope this meets you well.
Thank you for choosing us.