Disclosed are methods, systems, and non-transitory computer-readable medium for providing application programming interface (API) mashups. For instance, the method may include hosting a plurality of certified FMS micro-services associated with a plurality of FMS APIs; hosting an API mashup generator to perform an API mashup process and an API mashup recommendation process, the API mashup process generating combinations of APIs that include one or more APIs from the plurality of FMS APIs, other avionics APIs, and/or third party APIs; and hosting a service mesh to process a user request from a user device for the API mashup recommendation process or an invoke micro-service process.