We’re excited to announce the Open Early Access (EA) of Custom Token Exchange. OAuth 2.0 Token Exchange allows to trade one security token for another (typically an Access Token). With Custom Token Exchange, you can run Auth0 Actions as part of that exchange, giving you a flexible way to inject custom logic and implement your own authentication and authorization semantics. This lets you validate and authorize the request, and precisely set the user for every token exchange transaction.
Key highlights of this release:
organization parameter in the request or use the new setOrganization function within your Action.
To learn more, read the reference documentation.
Fetched April 15, 2026