[Yandex Cloud documentation](../index.md) > [Yandex IoT Core](index.md) > Getting started > Overview

# Getting started with Yandex IoT Core

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Yandex IoT Core is no longer available to new users. 

Current users can create resources until November 1, 2026. Afterwards, the service will go read-only and cease to operate on December 1, 2026. For more information on the timing and procedure, see [Service shutdown](sunset.md).

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In Yandex IoT Core, you can send messages and subscribe to them via [MQTT](https://mqtt.org/). You can subscribe your IoT devices to [topics](concepts/topic/index.md) of your device registry or message broker. The broker imposes fewer restrictions on the way messages are exchanged than the registry does.

Get started with a [device registry](quickstart.md) or a [broker](quickstart-broker.md). Read about the components of the service in [Resource relationships in Yandex IoT Core](concepts/index.md).