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. Send SMS, voice & Email Parallelly. 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. SMS, voice and emails. So why not perform the task from the same platform built specifically for high volume? What you can 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. Fallback - the sending of desired information through other channels if first priority channel is unreachable. This feature comes into play automatically without the need for human resources. E.g. SMS failed, send SMS content via voice or email or parallelly. 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. Webhook API - Simple webhook API integration to make you aware of what's happening around you. 2FA (Two Factor Authentication) - We have also a 2FA API for OTP Service etc. 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 take inputs like keypress invoices. 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 as a service for the scenarios given below: SMS, Voice & E-Mail for: 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 Fallback for OTP failure.