Cross-App Access (XAA)
Cross-App Access is Okta's emerging OAuth profile for secure agent-to-app and app-to-app authorization, based on the IETF draft "OAuth Identity Assertion Authorization Grant" (ID-JAG, draft-ietf-oauth-identity-assertion-authz-grant). It lets an Identity Provider mint an identity assertion that downstream resource applications can exchange for a scoped access token, eliminating long-lived unmanaged credentials between AI agents and SaaS apps. Okta operates xaa.dev as a public sandbox for testing requesting and resource application implementations.