KB Article #182603
How to reset API Gateway admin password
Problem
How to reset API Gateway admin password ?
Resolution
To reset the "admin" user's password of API Gateway the following options are available:
1) By connecting in UI (8090 Port) -> on Settings -> Admin Users -> Actions -> Edit -> here you need to update with the desired password.

3) By using the REST API to update the password: https://apidocs.axway.com/swagger-ui-NEW/index.html?productname=apigateway&productversion=7.7.0&filename=api-gateway-swagger.json#/Admin%20Users%20API/post_adminusers_users_password
Example: curl -kv -X POST https://host:8090/api/adminusers/users/password -u admin:changeme -H 'Content-Type: application/x-www-form-urlencoded' -d'oldPassword=changeme' -d'newPassword=desired_password'