Azure IoT Hub

Managed service to enable bi-directional communication between IoT devices and Azure

Build your IoT application with two-way communication

Enable highly secure and reliable communication between your IoT application and the devices it manages. Azure IoT Hub provides a cloud-hosted solution backend to connect virtually any device. Extend your solution from the cloud to the edge with per-device authentication, built-in device management, and scaled provisioning.

Security-enhanced communication channel for sending and receiving data from IoT devices

Built-in device management and provisioning to connect and manage IoT devices at scale

Full integration with Event Grid and serverless compute, simplifying IoT application development

Compatibility with Azure IoT Edge for building hybrid IoT applications

Establish bidirectional communication with billions of IoT devices

Use device-to-cloud telemetry data to understand the state of your devices and define message routes to other Azure services—without writing any code. In cloud-to-device messages, reliably send commands and notifications to your connected devices and track message delivery with acknowledgement receipts. Automatically resend device messages as needed to accommodate intermittent connectivity.

Read the documentation

Authenticate every device for enhanced security

Set up individual identities and credentials for each of your connected devices to help retain the confidentiality of both cloud-to-device and device-to-cloud messages. Selectively revoke access rights for specific devices as needed.

Learn more about Azure security for IoT

Automate device provisioning to accelerate IoT deployment

Register and provision devices with zero touches, in a highly secure and scalable way. IoT Hub Device Provisioning Service supports any type of IoT device compatible with IoT Hub.

Read about IoT Hub device provisioning

Extend the power of the cloud to your edge devices

Easily create and deploy IoT Edge modules to transmit code and services between the cloud and the edge. Distribute intelligence—including AI and other advanced analytics—across a range of devices. All while reducing your IoT application costs, easing development efforts, and running devices offline or with intermittent connectivity.

Explore IoT Edge

End-to-end data and device security based on decades of experience

  • Reduce risk by using security posture management and threat monitoring and remediation, with Azure Security Center for IoT.
  • Help protect your business assets with our stringent security standards and the largest portfolio of compliance certifications in the industry.
  • Join startups, governments, and 95 percent of the Fortune 500 putting their trust in the Microsoft Cloud.

Azure IoT Hub pricing

  • Connect, monitor, and control billions of IoT assets with no upfront cost or termination fees—and pay only for what you need.

Start using Azure IoT Hub

Watch a video about using the features and familiar tooling to scale to billions of devices

Follow step-by-step tutorials

Documentation, learning resources, and community


Quickstarts, how-to guides, tutorials, and API reference documentation.

Explore the documentation

Developer’s guide

Find the resources you need to get started and work through technical challenges.

Check out the guide

IoT School

Whether you’re new to IoT or a seasoned professional looking to stay at the top of your game, find the information, learning materials, and resources to start building your IoT solutions.

Get started in IoT School

IoT Show

Watch live-streamed events about how to build IoT solutions, and deep dive into top-requested topics like intelligent edge, DevOps, and asset tracking.

Watch now

IoT technical community

Ask questions and get support from Microsoft engineers and Azure community experts.

Join the conversation

Customers building breakthrough solutions with Azure IoT Hub

IoT helps solve global water challenges

"Azure and IoT services have helped us get much closer to our ambition to help customers operate at water-neutral."

Christophe Beck, Executive Vice President and President, Nalco Water

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Revolutionary IoT solution for vehicle owners helps save time, money, gas—and possibly lives

"By analyzing sensor data from a connected car in Azure, drivers can see alerts about engine issues and metrics about gas consumption and driving performance, such as idle time. They can also configure their own recipe for rating their driving style and then drill down for details."

Riccardo Zamana, IoT Platform and Hybrid Cloud Services Director, TEXA

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Boosting green energy intelligence with IoT in Germany

"We used Azure because we knew E.ON had high standards for data security, and Azure is highly secure by design. We passed E.ON's security tests easily using Azure."

Frank Schmid, Head of Business Units and System Solutions, M&M / WAGO

Read the story


Azure IoT Hub updates, blogs, and announcements

Frequently asked questions about Azure IoT Hub

  • IoT Hub Basic is an ideal place to start your IoT deployment if you don’t need bi-directional communication but still with foundational IoT security with per-device authentication, highly scalable device support, and a seamless upgrade path to IoT Hub Standard. Standard enables device management and Azure IoT Edge support. Event Hub is designed for big data scenarios, such as website data ingestion. See a detailed comparison.
  • Each Azure subscription has default quota limits to prevent service abuse. These could impact the scope of your IoT solution. The current limit is 50 IoT hubs per Azure subscription. To request quota increases, please contact support. Get more details.
  • Azure IoT Hub and IoT Hub device SDKs support the following protocols for connecting devices.

    • HTTPS
    • AMQP
    • AMQP over WebSockets
    • MQTT
    • MQTT over WebSockets

    If your application can’t use one of the supported protocols, extend IoT Hub to support custom protocols by doing the following.

  • Azure IoT Hub provides a 99.9-percent SLA under the Azure SLA. Learn more.
  • IoT Hub scales to billions of connected devices and billions of events per second, simultaneously, to support your IoT workloads. Choose the service tier that best fits your scalability needs. Learn more on the pricing page.

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