Email Delivery. Simplified.

The Email Service for Developers.

Send transactional, triggered, and personalized email, then track results.

Bulk and transactional email-sending service.

Bring voice and messaging to your web and mobile applications.

Fully managed push messaging service

Email delivery for web apps - done right.

Free Mobile and Web Push Notifications

HTTP-based interface created for developers keen on building bots for Telegram

Email Delivery and Analytics for Developers and Enterprises

Email delivery made easy

API for SMS, Voice and Phone Verification

Connect intelligent bots that interact via text/sms, Skype, Slack, Office 365 mail and other popu...

Tools to help you build your bot and reach 900 million people around the world

Build your own customized Telegram clients

Simple and reliable messaging to reach over a billion devices.

Email automation for developers + testing and analytics for marketers.

A Complete Chat Platform, Messaging and Chat SDK and API

Give users new ways to interact with your product by building engaging voice and text-based conve...

Conversational interface platform for apps, devices, bots, and services.

API platform to build Voice & SMS Applications

Improve customer engagement with push notifications, location-based marketing and analytics.

A free and open-source mail transfer agent

Building Blocks for Building Slack Bots

Mailchimp for SMS

A freeware, cross-platform messaging and Voice over IP service

A question-answering computer system capable of answering questions posed in natural language

The phone system for modern business

🤖 The ultimate open-source conversational platform with built-in natural language processing (NLU...

Text to Speech in 47 Voices and 24 Languages

A cross-platform messaging solution

Create chatbots easily — no coding required

Enhance your products with live, face-to-face communication.

Build conversational voice and text interfaces, using the same deep learning technologies as Alexa

Intelligent, serverless bot service that scales on demand

Enabling Messaging for Businesses

Push Notifications for Websites

HTML Email Layouts by MailChimp

Integrate your killer app onto WeChat's advanced mobile communication platform

A module for Node.js applications to allow email sending

A cloud-based voice service

Cloud business phone systems that work the way you do.

Speech to text conversion powered by machine learning

Free API to send Push Notifications to iOS & Android

Customer engagement platform

Making business communications feel as natural as communicating with friends.

Open source mail delivery platform, alternative to Mailgun or Sendgrid

Connect your user with mobile group chat, content sharing, user accounts and more

Real-time cross-platform push notification service

Reach users on the world’s most popular messaging app through one streamlined API, officially sup...