What is OAuth2 token introspection?

Can you explain what OAuth2 token introspection is?

OAuth2 token introspection is a process that allows a resource server to validate an access token and retrieve its metadata.

Why is token introspection important?

Token introspection is important because it helps ensure that the access token is still valid and provides information about the token's scope and expiration.

How does the introspection process work?

The introspection process typically involves sending a request to the authorization server with the token, which then responds with the token's status and details.

Are there any security concerns with token introspection?

Yes, security concerns include ensuring that the introspection endpoint is secure and that only authorized clients can access it.