To answer your question, we need to clarify a few points about Ory Hydra and Ory Kratos, and how they can work together. Ory Hydra and Ory Kratos are separate components with different purposes: 1. Ory Hydra is an OAuth 2.0 and OpenID Connect provider. It issues access, refresh, and ID tokens, but doesn't handle identity management itself. 2. Ory Kratos is an identity management server that handles user registration, login, and profile management. To use Kratos as an identity provider (IdP) while using Hydra for OAuth2/OIDC, you would typically integrate them as follows: 1. Use Ory Kratos for managing user identities, authentication, and sessions. 2. Configure Ory Hydra to use Ory Kratos as its identity provider. The Hydra token endpoint won't directly return a Kratos token. Instead, the typical flow would be: 1. Users authenticate with Kratos. 2. Kratos manages the user session. 3. When an application needs OAuth2/OIDC tokens, it redirects to Hydra. 4. Hydra checks with Kratos to verify the user's authentication status. 5. If authenticated, Hydra issues its own tokens (access, refresh, ID tokens). For a more detailed explanation of how to integrate Ory services, you can refer to the [Ory Documentation on Ecosystem Projects](https://www.ory.sh/docs/ecosystem/projects). This page provides an overview of how different Ory components can work together. To set up Hydra with Kratos as the identity provider, you would need to implement a login and consent provider that interfaces with Kratos. Unfortunately, the provided knowledge sources don't contain specific implementation details for this integration. For the most up-to-date and detailed information on integrating Hydra with Kratos, I recommend checking the official Ory documentation or reaching out to the Ory community for specific implementation guidance.