REST API - HMVC - Editing and Merging two APIs

We have a set of api end Points done on a particular method with just [login to view URL] and [login to view URL] - method 1 - this has 4-5 sets of enf points which we need Method 2 - is a single token based HVMC REST API with exactly same database structure as method 1 but has a lot more end points What we need is - use the authentication method used in method 1 to be copied to method 2 - copy the few end points we required from method 1 to method 2 Basically having method 1 combined with method 2 so the auth (token name, token key and private key auth) in method 1 works in method 2