The Ably API Streamer makes it easy and cost-effective to expose and deliver realtime APIs at scale - currently a costly and complex process. It combines API management tools and distribution gateways into a unified platform for deploying and streaming realtime APIs over the Ably network.

Effortlessly expose your realtime APIs

  • Deploy

    Fully-managed serverless infrastructure so you can quickly deploy realtime APIs. We support integration with cloud, hybrid, or on-prem environments for seamless integration, whatever your architecture.
  • Manage

    With the API Streamer there’s no need to build in-house tooling to manage your realtime APIs. Our management dashboard provides all the tools you’d expect: registration, permission management, analytics, rate limiting, security, and more.
  • Distribute

    API Streamer is built on Ably’s battle-tested Data Stream Network, enabling end-to-end streaming from data source to end-user device in milliseconds. It's infinitely scalable - you only pay for the capacity you use.

Universal interoperability = reusable realtime API endpoints

Developers can deploy a stream once, using whichever protocol they wish, and create re-usable API endpoints. API Streamer’s adapter function transforms source protocol to client destination protocol for unlimited numbers of customers to integrate with using the protocols and platforms of their choice.

API Streamer/Protocol Diagram

Security • Analytics • Transformation

Interoperability • Monetization

Developer portal

Who’s using Ably?

Over 200 companies trust Ably to deliver their realtime data.

Seamlessly federate data across third-party systems

Use the Ably Reactor to push data directly to the third-party systems your consumers prefer, automating the data federation process. API Streamer has native support for the Reactor and offers support for multiple protocols and systems for executing serverless functions, processing data streams, queuing data, and any other cloud service your customers integrate with.

A uniquely end-to-end solution

Ably API Streamer isn’t just a platform for B2B server-to-server communication. The platform can stream data direct from its source — such as an IoT device — right through to wherever it needs to go, even as far as an end-user’s mobile app. No other platform supports the complete data supply chain in this way.

Designed with developers in mind

Whether you’re producing data, or consuming data, Ably offers APIs that developers love. They can work in any language and platform they want as we offer all the popular SDKs. If developers prefer open protocols, they can choose one of many protocols we support, and an encoding like JSON or binary MsgPack of their choosing.  And if developers consuming data from the API Streamer want data pushed to their services, we support every popular cloud, queuing, streaming and serverless environment.

Coming soon

Transform and filter your data

Consumers may not need all the data you publish, or indeed want the data in the same format you’re publishing it. Our soon-to-be-activated transformation and filtering capabilities will let you publish custom streams for your customers with transformations and filters applied. You can even allow consumers to filter the data they need, in the formats they want, with no involvement from you.

Efficient data delta streaming

Using data deltas, we can optimize streams by up to 90%* whilst always ensuring clients have the latest versions of your data. You benefit from lower data costs and faster delivery to your customers.

* Savings vary based on the data published and chosen algorithm

Depend on super-low latencies

Our proximity to your subscribers, with 15 datacenters globally, means Ably API Streamer can guarantee class-leading performance with the lowest latency service available. We currently deliver global round-trip median latencies of less than 65ms.

Click on a location to check the latency from your location:

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The support you demand

Naturally, we provide all the management dashboards, documentation, tutorials, and developer guides that ensure your teams can integrate swiftly and cost-effectively. Plus we offer developer portals for your customers so their teams can be up and running quickly. All backed with 24/7 live support to ensure developers can get up and running in hours, not weeks.

Take control of your streaming APIs

We give you all the tools you need to manage your APIs. Your producer dashboard gives you complete control over who has access to your data products, and full analytics detailing what data is produced and distributed. You control how much is distributed and who’s paying for the data distribution and bandwidth costs.

Keep your information safe and secure

We want to keep your APIs and data safe and secure from attack. Denial of Service protection and mitigation is baked into the service. And end-to-end encryption is available in addition to numerous authentication and authorization schemes, including token based and JWT authentication with fine grained access controls.

Our commitment to interoperability

We’re utterly committed to Open Source. We support open protocols, proprietary protocols, and we’re always working to support new protocols. Whichever cloud, protocol or platform you prefer to work with, Ably API Streamer has you covered.

See our our Open Protocol Policy

Six ways API Streamer helps you monetize in the realtime API economy


  • 1

    Skip infrastructure investment and go straight to creating realtime APIs, opening up new revenue streams by simplifying developer integration.

  • 2

    Manage who pays for message and bandwidth charges from your dashboard.

  • 3

    Access analytics on your realtime APIs to bill customers for their usage or, in the future, bill customers directly through our platform.

  • 4

    Get the control you need to implement different commercial models with your data. For example, a freemium model or volume based/subscription model.

  • 5

    API Streamer is the simplest, easiest way to take your business into the realtime API economy today.

  • 6

    Quickly move to a SaaS model of billing for data products as the realtime API economy grows.

Your 100% uptime guarantee

Our customer-centric approach to availability, our proprietary client-side approach to routing, and ultimately our confidence in our technology allow us to uniquely provide a 100% uptime guarantee.

See how we've performed in the last 12 months

See it in action

See more examples

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    Read the documentation

    Understand key concepts and get going in no time

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    Learning by example.

Need to know more?

If you’ve got questions about Ably API Streamer, see our FAQs, or contact us to discuss your requirements.