‘api’ is part of the path that Strapi understands, so your prefix would be ‘um’ (in place of the ‘strapi’ that I used). If you don’t want your admin panel to be on /um/admin then you need two routing rules for your service: one for the admin panel and one for the api. And you will need to strip both prefixes in the middleware function. Do note, though, that the admin panel also uses API endpoints, so you must ensure that they are available with either prefix.