Spark is a public domain FHIR server developed in C#, initially built by Firely and as of recently being maintained by Kufu.
Spark implements a major part of the FHIR specification and has been used and tested during several HL7 WGM Connectathons.
As of recently the task of maintaining Spark has been taken upon by the community and is led by Kufu. Kufu and the community, will keep enhancing this server to support the latest versions and add functionality. We also welcome anyone who wants to support this effort and help us make Spark a better reference platform and playground for FHIR.
DSTU1 is no longer maintained by this project. The source code can be found in the branch dstu1/master.
Source code can be found in the branch master, we try to keep up-to-date with the DSTU2 version of FHIR.
Source code can be found in the branch stu3/master, we try to keep up-to-date with the STU3 version of FHIR.
The source code of Spark can be found in the branch r4/master. Currently supported in beta and is up to date with the version of Spark running at http://spark.kufu.no FHIR Endpoint: http://spark.kufu.no/fhir
If you want to contribute, see our guidelines