The NXT FHIR API is compliant with the following standards:
- HL7 FHIR R4 v4.0.1
- US Core Profiles v3.1.1 / USCDI v1
- Bulk Data Access version 1.0.1
- SMART App Launch version 1.0.0
All interactions with the NXT FHIR API are done over the HTTP protocol. In order to succesfully communicate with the API you only need a standard HTTP client. There are no special requirements on which HTTP client libraries are used. For development purposes we recommend Postman however feel free to use any other REST API testing platform.