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.

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Where can I see documentation about make a registration flow using Ory Cloud? I'm using this tutorial: <https://www.ory.sh/nextjs-authentication-spa-custom-flows-open-source/>

but, I'm not sure how initialize the state and get the <https://www.ory.sh/kratos/docs/self-service/flows/user-registration|Self-Service Registration Flow ID> because I'm using OryCloud

you would do the same flow as with kratos. the only difference is the baseURL changed to your project sdk url