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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yes, see basically everything under <https://www.ory.sh/docs/oauth2-oidc/>

or are you talking about API keys to do e.g. Ory Identity administrative API calls?

Need to create a client id and secrets for services which wants to communicate b/w them. Could you please pin point to the doc ref. ?

I'm looking for how to configure them on Ory Cloud.