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

# Identity Hub 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/organizationmanager/v1).

**Service URL**: `https://organization-manager.api.cloud.yandex.net`

#|
||Service | Description ||
|| [GroupMapping](GroupMapping/index.md) | RPC service dedicated for federation group mapping. ||
|| [Group](Group/index.md) | A set of methods for managing groups. ||
|| [MfaEnforcement](MfaEnforcement/index.md) | a set of methods for managing MFA enforcements ||
|| [Operation](Operation/index.md) | A set of methods for managing operations for asynchronous API requests. ||
|| [Organization](Organization/index.md) | A set of methods for managing Organization resources. ||
|| [OsLogin](OsLogin/index.md) |  ||
|| [SshCertificate](SshCertificate/index.md) |  ||
|| [User](User/index.md) | A set of methods for managing Organization users. ||
|| [UserSshKey](UserSshKey/index.md) |  ||
|#