Use this endpoint to exchange a Connected Apps Access Token back into a Member Session for the underlying Member. This session can be used with the Stytch SDKs and APIs.
The Access Token must contain the full_access scope (only available to First Party clients) and must not be more than 5 minutes old. Access Tokens may only be exchanged a single time.
The Member Session returned will be the same Member Session that was active in your application (the authorizing party) during the initial authorization flow.
Because the Member previously completed MFA and satisfied all Organization authentication requirements at the time of the original Access Token issuance, this endpoint will never return an intermediate_session_token or require MFA.