@KD9   How long the NiFi server will validate a clients token is configured within the login-identity-providers.xml file via the following property: Authentication Expiration When setting up an automated process, using client tokens is not the best method.  A better option would be to authenticate your client via a client certificate.   With a client certificate, there is not need to obtain a token.  That Client certificate will continue to work for the life of the certificate (certificates do have a valid until date set when you generate the certificate).   So instead of passing a bearer token in your curl command, you would use your client pem key.   The owner DN from the client certificate would be used as the user identity that you would then need to authorize in NiFi for the rest-api endpoint(s) needed for your automation. If you found that the provided solution(s) assisted you with your query, please take a moment to login and click Accept as Solution below each response that helped. Thank you, Matt ... View more