[Yandex Cloud documentation](../../../../index.md) > [Yandex BareMetal](../../../index.md) > Concepts > Setup and management > API reference > API v2 > gRPC > Extend API > Overview

# Extend API: gRPC reference

Actions are performed by making RPC calls. For more information about API architecture, see [API Concepts](../../../../api-design-guide/index.md).

**Interface definitions** available at [GitHub](https://github.com/yandex-cloud/cloudapi/tree/master/yandex/cloud/baremetal/v2/extend).

**Service URL**: `https://baremetal.api.cloud.yandex.net`

#|
||Service | Description ||
|| [Operation](Operation/index.md) | A set of methods for managing operations for asynchronous API requests. ||
|| [StacklandCluster](StacklandCluster/index.md) | A set of methods for managing StacklandCluster resources. ||
|#