The official open-source Firely .NET SDK
Star
- Open-source
- Fully compliant with the standard
- Speeds up implementation time
- Lower the amount of coding
FIRELY .NET SDK
Get a running start in implementing FHIR the right way
About Firely .NET SDK
Firely .NET SDK provides a set of tools and libraries that make it easier for developers to work with FHIR resources in .NET applications. It’s open source and can be downloaded from the GitHub repository. It is regularly updated to keep up with the latest developments in the FHIR standard.
RESTful API
A client library for interacting with FHIR servers using the FHIR RESTful API. Easily retrieve, create, update, and delete FHIR resources using standard HTTP methods.
FHIR Data Model
Easier to work with FHIR resources in .NET applications because of the classes and interfaces that represent the different types of FHIR resources.
Serialization
Tools for serializing and deserializing FHIR resources in different formats, including JSON and XML
Profiling
Working with FHIR profiles, including the ability to create profiles with the SnapshotGenerator. Define custom profiles, and use them to validate resources against custom constraints.
Support for multiple FHIR versions
Work with any version of the FHIR standard, from the earliest releases to the latest and most cutting-edge versions, and ensure that your applications will continue to work seamlessly as the standard evolves over time.
FHIRPath
Perform complex searches and manipulations on FHIR resources to retrieve specific data elements or transform them into new representations.
Get started today!
Or select one of the earlier versions of the FHIR specification:
Additional libraries
Some features are too big to just include in our main library. We like to call them part of our .NET SDK, but technically you’ll find them on their own spot in NuGet and Github.
CQL Engine
Execute CQL and evaluate CQL logic in libraries on the .NET platform. Created in collaboration with NCQA and tested against HEDIS measures.
FHIR Packages
Manage FHIR resources, and organize them into logical groups and versions for easier management and sharing.
Validation
Validation of FHIR resources out of the box to ensure syntactical and semantical correctness.
Take care of your implementation
Great products deserve great implementations. Firely provides all the training you need to better understand and implement FHIR.
FHIR Training Courses and Workshops for Health IT Professionals
Firely is of the initiators of the FHIR standard. Our training courses are aimed at implementers. Learn today, apply tomorrow.
- Firely .NET SDK workshop where you learn how to implement FHIR with Firely
- HL7 FHIR Training course to gain practical experience while learning
- HL7 FHIR Advanced Training Course, to gain a deeper understanding of HL7 FHIR

Find out how Firely can help you bring FHIR to life
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