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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To expand further, we have all our users in Ory Cloud, we'd like to allow them to login to our discourse instance.

Hi <@U03T8P8EBHU>

Just to clarify, would you like users that are accessing your discourse instance to login through Ory? It seems through the link you have provided, they support integration with an OAuth2 and OpenId connect provider. Each Ory project has this built in. So in your case you would just configure the discourse service with a client_id and client_secret created by your Ory project.

Basically this flow <https://www.ory.sh/docs/oauth2-oidc/authorization-code-flow>