[Yandex Cloud documentation](../../../../index.md) > [Yandex MetaData Hub](../../../index.md) > Data Catalog > API reference > gRPC > Overview

# Datacatalog 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/datacatalog/v1).

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

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