A system and method for mapping an application program interface (API) to a relational schema. In one embodiment, the system samples a first endpoint, the first endpoint exposed via a first application programming interface (API); automatically infers, based on a set of results received from the first endpoint responsive to the sampling and based on a set of inference rules, a first set of data types and a first relational data structure representing data stored by the first endpoint and exposed via the first API; generates a configuration profile based on the first set of inferred data types and the first relational data structure representing the data stored by the first endpoint and exposed via the first API; and obtains, using the configuration profile and via the first application programming interface, data from the first endpoint responsive to a query, the query received in a relational query language.