# Welcome
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Welcome to the Amazon IoT SiteWise API Reference. Amazon IoT SiteWise is an Amazon service that connects [Industrial Internet of Things (IIoT)](https://en.wikipedia.org/wiki/Internet_of_things#Industrial_applications) devices to the power of the Amazon Cloud. For more information, see the [Amazon IoT SiteWise User Guide](https://docs.amazonaws.cn/iot-sitewise/latest/userguide/). For information about Amazon IoT SiteWise quotas, see [Quotas](https://docs.amazonaws.cn/iot-sitewise/latest/userguide/quotas.html) in the * Amazon IoT SiteWise User Guide*.

This document was last published on April 30, 2026.