I don't know what "synthetic data" means, but an example is service account in Google's IAM. I ask because I see in the docs a long time back it was mentioned: https://github.com/ory/docs/blob/b50e2c379cedfdc7d0ece4a5dacadb606e1910cb/docs/kratos/admin/managing-users-identities.mdx#creating-a-[…]ine-identity With such a feature in Kratos, I would provision a machine/service identity which my client application can authenticate as using client credentials flow in Hydra and use the token to authorize in the internal services it calls