Authkey is a One API Platform for SMS, Voice & E-mail which allows you to verify and keep you connected with your Clients or End Users. It has been developed keeping in mind that in most of the cases like Sending OTPs, Notifications, Order Confirmation, Timely Offers, Newsletter etc. We need to communicate through multiple channels i.e. Voice, SMS or Emails. So why not perform the task from the same platform built specifically for high volume? What can you do with Authkey? Parallel Sending - Send SMS, Voice and Email Simultaneously from the same source for different purposes like SMS & Email for Order Confirmation and Voice for COD Verification. Custom Fallback - Apply Custom Fallback and be assured not to miss a single msg to be conveyed like OTPs or any other Critical Information to your Users. So that one channel fails, the other channel does the job. Web hook API - Simple Web hook API Integration to make you aware of what's happening around. 2FA(Two Factor Authentication)- We have also 2FA API for OTP Service etc. Here, Brief you about the salient features and Usage of Authkey. You can send SMS, Voice and Email with our Direct APIs and start in a jiffy. You can create Customized Templates for sending customized messages and taking inputs like Keypress in Voice. Event-Based Sending to send different messages in SMS, Voice and Email for a particular Event. You can add Fallback to any of the above mentioned scenarios. You can use our platform for the scenarios given below: SMS: Sending one-time(OTP Security with Two- factor Authentication(2FA) Order confirmation Shipment Tracking Notification and update Discount Offers Google verified SMS Voice: Fallback for OTP failure COD Order verification Two-way communication with a keypress Personalized Payment Reminders With TTS Shipment Tracking Number Masking for Privacy Feedback Calls E-mail: Account create confirmation Password Reset Shipment Notification Shipment Tracking Purchase Receipt E-mail OTP