Abstract: Disclosed herein are system, method, and computer program product embodiments for the design, architecture, and implementation of various aspects of an API gateway. A computer implemented method may access, by an API portal, a catalog comprising a plurality of APIs. The catalog may be configured to return a subset of the plurality of APIs based on a search. Each API at the catalog may include at least one feature comprising an API type. The method may then download one or more APIs from the plurality of APIs to the API portal. The method may further manage access to the API portal, where the access is associated with one or more users. The method may customize a layout of the API portal, where the layout includes at least one customizable feature comprising a color scheme. The method may then generate logs and metrics corresponding to each API at the API portal.