Courier Integrations

Email is the backbone of your customer engagement. The Twilio SendGrid Email API is the email service trusted by developers and marketers for time-savings, scalability, and delivery expertise. Our flexible Email API and proprietary Mail Transfer Agent (MTA), intuitive console, powerful features, and email experts make it easy to ensure all your email gets delivered in seconds and without interruption. Monitor engagement data and optimize deliverability with our Deliverability Insights dashboard. Whether you’re sending 100 emails or 100 billion, SendGrid is built to scale. Integrate with our RESTful APIs and SMTP in minutes, with sample code libraries available in 7 languages, interactive docs, templates, and more.

Design and deploy your ideal customer engagement experience. Twilio is a single fully-programmable platform with flexible APIs for any channel and over 400+ integrations, backed by a community of over 9 million developers. Build accurate and personalized experiences for your customers, easily and at scale, using SMS and WhatsApp messaging, voice, video, email, and more. Browse documentation and SDKs in multiple coding languages, including Ruby, Python, PHP, Node.js, java, and C#, or jumpstart your first project with our open source code templates to quickly build production-ready communications apps. Sign up and start building today.

Slack is a cloud-based project collaboration and team interaction software solution specially designed to seamlessly facilitate communication across organizations. Featuring powerful tools and services integrated into a single platform, Slack provides private channels to promote interaction within smaller teams, direct channels to help send messages directly to colleagues, and public channels that enables members across organizations to start conversations. Available on Mac, Windows, Android, and iOS apps, Slack offers a plethora of features that include chat, file sharing, collaborative workspace, real-time notifications, two-way audio and video, screen sharing, document imaging, activity tracking and logging, and more.

Solving today's complex business problems takes teams of engaged people working together. We’ve built an online guide to teach you and your team the secrets of successful teamwork. When you have a place to create and make decisions as a team, there’s no limit to what you can achieve. Teams brings everything together in a shared workspace where you can chat, meet, share files, and work with business apps. Get your team on the same page with group chat, online meetings, calling, and web conferencing. Collaborate on files with built-in Microsoft 365 (formerly Office 365) apps like Word, Excel, PowerPoint, and SharePoint. Add in your favorite Microsoft apps and third-party services to keep the business moving forward. Get end-to-end security, administrative control, and compliance—all powered by Microsoft 365. Teams is designed for groups of all kinds. Get started with the free, no-commitments version. You can also get Teams as part of the best-in-class suite of productivity tools.

Discord is a free game communications app designed for both desktop and mobile platforms. Millions of players use the popular game platform every day to chat with friends over voice or text, or even stream gameplay in crystal clear quality for other Discord users. Not only can you organize a voice/text party in seconds, you can also use the service to find other players/teammates, search for certain types of groups/activities, or just talk games during your off time. The best part is that Discord is not designed for any specific genre or type of game; you can use it to coordinate communications for any game imaginable!

Firebase helps you build and run successful apps. Backed by Google and loved by app development teams - from startups to global enterprises. Products and solutions you can rely on through your app's journey. Install pre-packaged, open-source bundles of code to automate common development tasks. Easily integrate Firebase with your team’s favorite tools. Use Firebase products together to solve complex challenges and optimize your app experience. Personalize your onboarding flow, grow user engagement, or add new functionality with Firebase. Firebase provides detailed documentation and cross-platform SDKs to help you build and ship apps on Android, iOS, the web, C++, and Unity. Learn how to create a Firebase project, register apps to it, and integrate the Firebase SDKs for your products and platform: iOS, Android and Web. Learn about Firebase projects, including concept overviews, deep-dives into topics like project permissions and project management tools, or preparing to launch your app.

Simple. Secure. Reliable messaging. With WhatsApp, you'll get fast, simple, secure messaging and calling for free*, available on phones all over the world. WhatsApp Business is a free to download app that built with the small business owner in mind. Create a catalog to showcase your products and services. Connect with your customers easily by using tools to automate, sort and quickly respond to messages. WhatsApp can also help medium and large businesses provide customer support and deliver important notifications to customers. Learn more about WhatsApp Business API. Some of your most personal moments are shared on WhatsApp, which is why we built end-to-end encryption into the latest versions of our app. When end-to-end encrypted, your messages and calls are secured so only you and the person you're communicating with can read or listen to them, and nobody in between, not even WhatsApp.

Get more done with Gmail. Now more secure, smarter and easier to use—helping you save time and do more with your inbox. See what’s new at a glance, and decide what you want to read and respond to. Get nudges that remind you to follow up and respond to messages, so that nothing slips through the cracks. View attachments, RSVP to events, snooze messages and more without opening any emails. Gmail blocks 99.9% of dangerous emails before they reach you. If we think something seems phish-y, you’ll get a warning.

See how the developer friendly Telnyx API can transform your business communications. Telnyx is an all-in-one communication platform designed to be tailored exactly to your needs. We created our network with real-time communications in mind so we can deliver quality calls, messaging, and data around the world. Easily build reliable messaging with our SMS API. Keep your data safe by setting up two-factor authentication using SMS or voice codes. Plug and play your VoIP setup in minutes and get carrier-grade voice with elastic SIP trunks. Our cloud-agnostic approach means you can rest easy knowing you are protecting in case of a network failure. With Telnyx deploy communications exactly to specifications.

One platform, infinite ways to connect to your employees and customers. Build auth into any app. Create secure, delightful experiences quickly by offloading customer identity management to Okta. Get security, scalability, reliability, and flexibility by combining Okta’s Customer Identity products to build the stack you need. Protect and enable your employees, contractors, and partners. Secure your employees—wherever they are—with Okta’s workforce identity solutions. Get the tools to secure and automate cloud journeys, with full support for hybrid environments along the way. Companies around the world trust Okta with their workforce identity.

Turn conversation into customer loyalty with Messenger. Messenger helps you simplify customer acquisition by providing a direct, conversational way for people to take action where they already spend their time. Building a presence on Messenger allows people to browse your products and services, and purchase them directly in the conversation. Building an experience on Messenger can help get your business, product or service in front of more people. Whether you’re launching a new product or driving awareness, conversation creates a meaningful connection with your business. Integrating Messenger into a customer service strategy allows customers to communicate with your business on their terms. No more waiting on hold or keeping website windows open. And the conversation stays in Messenger, an easily accessible spot for questions and re-engagement.

OneSignal is the market leader in customer engagement, powering mobile push, web push, email, and in-app messages for over 1 Million developers and marketing teams. OneSignal takes just minutes to setup, and makes it easy for you to send push notifications and messages to all your users. Access robust features including segmentation, automated messaging, intelligent delivery, A/B testing, and real-time reports. Built for developers, OneSignal makes it easy to code in the language you know with any development environment - all with less than 10 lines of code. It's also the most flexible push provider, with integrations to top analytics providers, DMPs and CRMs, plus Zapier to connect with 1400+ apps and platforms. OneSignal is free to send messages to an unlimited mobile subscribers and up to 10K web push subscribers. OneSignal is used by 76% of the top million sites with push notifications (source: Builtwith).

Access high-quality cloud communications at a low cost with Plivo Communications Platform, a Cloud API Platform and a Global Carrier Services Provider. Plivo Communications Platform enables users to make phone calls to all countries, buy local phone numbers in 55 countries, send SMS to all countries, and more. Available 24/7, Plivo Communications Platform also features free tech support by experts that are happy to assist customers with their issues.

Bird (formerly MessageBird) is the next-generation CRM for Marketing, Sales, and Payments, powering over 5 trillion annual messages across Email, SMS, and WhatsApp. Leading brands grow cost-efficiently with Bird through personalized interactions on Email, SMS, and WhatsApp. The world's most innovative companies build communication solutions using Bird's applications and APIs. Get started today and talk to your customers over any channel, for any use case, anywhere in the world. Marketing messages, push notifications, order updates, delivery alerts and more. Operational bottlenecks slowing your growth? Use automated conversations and workflows to collect critical information up front, reduce manual tasks, implement self-service flows, and route chats to the right agent. Get up and running in minutes on our reliable, auto-scaling APIs with extensive documentations, complete API references and intuitive SDKs.

MailerSend is a new kind of transactional messaging service designed for developers to work faster and smarter. Intuitively designed so anyone can contribute to transactional email and SMS, while a powerful sending infrastructure and flexible payment plans let you scale your sendings quickly. Built by deliverability experts, and with the inbuilt email verification tool, you can rest easy knowing your messages will get delivered. Plus, inbound routing allows customers to interact with your messages. Try it for yourself! Get started for FREE with 3,000 messages per month, then only pay for what you send. No contracts! The free plan has the features you need, including always 24/7 technical support.

Amazon Simple Email Service (SES) is a cost-effective, flexible, and scalable email service that enables developers to send mail from within any application. You can configure Amazon SES quickly to support several email use cases, including transactional, marketing, or mass email communications. Amazon SES's flexible IP deployment and email authentication options help drive higher deliverability and protect sender reputation, while sending analytics measure the impact of each email. With Amazon SES, you can send email securely, globally, and at scale. Using either the Amazon SES console, APIs, or SMTP, you can configure email sending in minutes. Amazon SES also supports email receiving, enabling you to interact with your customers at scale. Regardless of use case or sending volume, you only pay for what you use with Amazon SES.

Thousands of the world’s leading brands rely on Airship to spark closer connections with their customers through highly contextual and relevant interactions. Only Airship’s Customer Engagement Platform takes a mobile-first, data-led approach that enables brands to focus on individuals and their needs, not which marketing channels to use. Airship makes it much simpler and more effective to grow customer lifetime value in the omnichannel era. With trillions of interactions intelligently orchestrated across mobile apps, push notifications, mobile wallet, SMS, websites, and email, Airship optimizes the entire customer journey across all digital touchpoints at scale. Getting a person to just download an app doesn’t make for a loyal customer. In fact, after a week or two, far too many people will never open the app again. What’s needed is a way to extend the app experience from acquisition and activation to engagement and loyalty.

Enterprises use Quickwork to build simple and complex workflows, create and publish secure APIs, and manage conversational interactions with customers, employees, and partners to provide a great user experience. Quickwork provides an all-in-one platform with the tools and services you need to build powerful & scalable integrations, serverless APIs, conversational experiences, and a lot more. Simply drag and drop the applications you wish to use to build powerful integrations without writing a single line of code. Choose from 1,000s of business, consumer, AI, analytics, messaging, and IoT apps to create an automated workflow you can imagine. Convert any workflow into an API with Quickwork’s single-click API management. Share your APIs securely with built-in authentication mechanisms and scale elastically with our serverless infrastructure. Build and manage real-time conversational and messaging workflows with human agents, chatbots, and IoT devices across multiple channels.

Transactional emails: Reach inboxes when it matters most. Deliver fast, personalized transactional emails using API or SMTP. Get the benefits of our experience sending billions of emails globally. Send personalized transactional emails that reach inboxes, not spam folders. Customize your analytics with pre-built dashboards, export API, and more. Read documentation guides, or contact our award-winning Support team for help. Use custom tagging, whitelabeling, conditional content, and more. Globally distributed infrastructure: Featuring automatic SPAM loop registration and pre-warmed dedicated IPs. Get analytics in multiple ways, plus custom tags, A/B test capabilities, and comparative reports. Utilize white-labelled click tracking, custom reverse DNS, rules engine, custom return path, and sub-accounts. That’s the average time to delivery for top 3 ISPs, sent from our MTAs to the recipient’s email server.

Mailgun is an email automation solution that is suitable for developers. With Mailgun, users are able to access a complete cloud-based email service for tracking, sending, and receiving emails sent via their applications and websites. Mailgun supports several programming languages including Python, Ruby, PHP, Java, and C#. With Mailgun's tracking feature, users are able to track all emails and reduce the chances of getting spam.