[Yandex Cloud documentation](../../../../../../index.md) > [Yandex Identity and Access Management](../../../../../index.md) > API reference > gRPC > Workload Identity > Federation > Overview

# Federation: 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/iam/v1/workload/oidc).

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

#|
||Service | Description ||
|| [Federation](Federation/index.md) | A set of methods for managing OIDC workload identity federations. ||
|| [Operation](Operation/index.md) | A set of methods for managing operations for asynchronous API requests. ||
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