MessageBird Chat API - Connect with your customers through different messaging apps
Chatfuel - Chatfuel is the best bot platform for creating an AI chatbot on Facebook.
Wavecell - Wavecell simplifies real-time cloud communications using SMS, Chat Apps, Video Interaction and Voice solutions.
Landbot - An intuitive no-code conversational apps builder that combines the benefits of conversational interface with rich UI elements.
Twilio - Brings voice and messaging to your web and mobile applications.
Botsify - Ever wonder if you could replace your live chat support system with a chatbot?. Its possible now with Botsify Chatbot For Website.