Authkey - SMS & WhatsApp API is described as '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' and is an website in the office & productivity category. There are more than 50 alternatives to Authkey - SMS & WhatsApp API, not only websites but also apps for a variety of platforms, including SaaS, Android, iPhone and Windows apps. The best Authkey - SMS & WhatsApp API alternative is UniStack. It's not free, so if you're looking for a free alternative, you could try Wazo or Fonoster. Other great sites and apps similar to Authkey - SMS & WhatsApp API are Telnyx, Smarter Contact, Twilio and Lead Sherpa.
Started as a reimplementation of the open source Plivo Framework (unmaintained as of 2015), Eqivo simplifies the integration between web applications and voice-enabled endpoints, such as traditional phone lines (PSTN), VoIP phones, webRTC clients etc.
Instasent is one of the largest and the most secure platforms in the market, in-house developed for sending bulk SMS world wide.
Chakra Chat is an official WhatsApp Business API platform for sales, support, and marketing teams.
Whautomate is a WhatsApp automation and engagement platform designed to help businesses improve their customer engagement and sales.
D7 SMS allows reaching the customers via SMS over D7's own connectivity to global mobile networks. D7 provides reliable and cost-effective SMS services to businesses across all industries and aims to connect all countries and territories.
Automate WhatsApp messaging, CRM, and WhatsApp Channel posting with Make.com and Zapier integration. No Meta Business API required.
Smart 2-Way Omnichannel Messaging Platform, for Businesses, IoT, Metaverse, and the Blockchain.
A comprehensive platform for managing and consolidating customer inquiries from WhatsApp to TikTok, offering automated workflows, appointment scheduling, real-time analytics, and click-to-WhatsApp for lead generation.
Eagle Messaging offers voice messaging, text SMS service, Voicemail, IVR, chat, and more. Users can send 60 minutes of a recorded voice message. Cost-Effective, unlimited SMS service & all-inclusive price (Only $10) on a per-month subscription basis.
High quality and cheap SMS gateway with coverage of 900+ operators worldwide. ? Worldwide coverage ? Free testing ? Great pricing ? Easy HTTP(s) API
TxtSync provides a web interface and API to reliably send and receive, low cost SMS and SMS Marketing Campaigns with no hidden monthly fees.
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