Disclosed are methods, systems, and computer-readable medium for context-specific granular access to flight management system (FMS) SaaS using adaptive IAM. For instance, the method may include receiving, at one of a plurality of application programing interface (API) endpoints of a flight management system (FMS) software as a service (SaaS), a request from a client; determining whether the request is authorized; in response to determining the request is authorized, analyzing the request to determine a context of the request and determine whether the request includes an intent; transmitting a message to a particular functionality of the FMS SaaS based on the context and the intent; determining whether the client is associated with a subscription type; filtering a data stream from the FMS SaaS in accordance with the subscription type and the context; generating a response based on the filtered data stream; and transmitting the response to the client.