Ory is the largest open source community in the world for cloud software application security. We maintain advanced open source security software solving authentication, authorization, access control, application network security, and delegation. Ory implements a variety of industry and best-practice standards including OAuth 2.0 / OAuth 2.1, OpenID Connect, Zero Trust Networking, Google Zanzibar Policy Framework, FIDO2 U2F, WebAuthn, TOTP, and more.

Ory Community

Is there a webhook I can use to import users into Ory on demand? For example when a user tries to log in a web hook looks up if they exist in the legacy system and creates it in Kratos? I know about the bulk import feature, but I want to keep the legacy registration working for a while.

There are webhooks for login, but I don't think you could create the identity with a separate API call, and then have it be picked up by Ory.
This is rather something that you would need to implement in the backend of the login UI.

Hey, I don't know if there is some kind of webhook but there is the create identity Admin API that able to create identity for a user:
<https://www.ory.sh/docs/kratos/reference/api#tag/identity/operation/createIdentity>