Authkey is a versatile multiple channels platform, including SMS API, WhatsApp Business API, Email, Voice Call APIs, and various authentication methods such as OTP, 2FA, and more.
Cost / License
- Paid
- Proprietary
Platforms
- Online
United Kingdom




Twilio is described as 'Web-service API that lets you use your existing web languages and skills to build voice and SMS applications. We focus on building a simple, powerful, pay-as-you-go communications platform so that you can focus on what you do best' and is an website in the social & communications category. There are more than 100 alternatives to Twilio, not only websites but also apps for a variety of platforms, including SaaS, Android, iPhone and Windows apps. The best Twilio alternative is UniStack. It's not free, so if you're looking for a free alternative, you could try Vendel or Sherlock Calls. Other great sites and apps similar to Twilio are Telnyx, Dexatel, Teliqon and Smarter Contact.
Authkey is a versatile multiple channels platform, including SMS API, WhatsApp Business API, Email, Voice Call APIs, and various authentication methods such as OTP, 2FA, and more.




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Autochat introduces a Whatsapp API Sandbox to integrate Whatsapp API with your business for Free. With Autochat’s Whatsapp API Sandbox, you can take advantage of most of the functionalities of Whatsapp API platform and build, develop and test your integration without waiting for...








Text Groove allow you to enable your existing business landline, VoIP, or toll free phone number and connect with your customers in a whole new way.
We’re making communications more flexible, intelligent, and personal, to help enterprises the world over stay ahead. We provide unified communications, contact centers and programmable communications APIs, built on the world's most flexible cloud communications platform.

High quality and cheap SMS gateway with coverage of 900+ operators worldwide. ? Worldwide coverage ? Free testing ? Great pricing ? Easy HTTP(s) API



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In less than 5 minutes, your customers or site visitors can call you directly from your website with a simple click of a button. Talk to your customers before they leave.
