Best Communication APIs

Compare the Top Communication APIs as of June 2025

What are Communication APIs?

Communication APIs are interfaces that allow developers to integrate various communication features such as voice, video, messaging, and email into their applications, websites, or services. These APIs enable businesses to add real-time communication capabilities without building the infrastructure from scratch, offering functionality like SMS notifications, voice calls, video conferencing, in-app messaging, and more. By leveraging communication APIs, businesses can automate communication processes, improve customer engagement, and enhance user experience. Many of these APIs are flexible, allowing developers to customize and scale features based on specific needs. Communication APIs are essential for businesses looking to streamline communication and provide seamless, integrated experiences across different platforms and devices. Compare and read user reviews of the best Communication APIs currently available using the table below. This list is updated regularly.

  • 1
    Ably

    Ably

    Ably

    Ably is the definitive realtime experience platform. We power more WebSocket connections than any other pub/sub platform, serving over a billion devices monthly. Businesses like HubSpot, NASCAR and Webflow trust us to power their critical applications - reliably, securely and at serious scale. Ably’s products place composable realtime in the hands of developers. Simple APIs and SDKs for every tech stack, enable the creation of a host of live experiences - including chat, collaboration, notifications, broadcast and fan engagement. All powered by our scalable infrastructure.
    Starting Price: $49.99/month
  • 2
    Whispir

    Whispir

    Whispir

    Engage your audience and get more done. The Whispir platform lets you automate, personalize and layer your communications with smart workflows. The only cloud communications platform you need to deliver extraordinary experiences. Create quality templates for email, web, social and more in minutes with our drag and drop template builder and over 60 individual components from images to maps. Streamline your communications and automate interactions, from everyday processes to complete marketing campaigns. Integrate with all your current data points from CRMs to 3rd party tools and put your data to work. Deliver your content to the right people at the right time. Create real, tangible outcomes that engage your audience, coordinate events and innovate your business processes.
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