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mOTP REST API - Source Code

mOTP is an open source, two-factor authentication service. It uses a missed call rather than SMS to send users a One Time Password (OTP) for use in two-factor authentication. This allows users to side-step the costs and delays that can be associated with SMS, which is used in most other two-factor authentication services. Developers can integrate mOTP into their own applications or web-based services using REST calls.