This server provides a nearly complete implementation of the FHIR Specification
using a 100% open source software stack. It is hosted by University Health Network.
The architecture in use here is shown in the image on the right. This server is built
from a number of modules of the
HAPI FHIR
project, which is a 100% open-source (Apache 2.0 Licensed) Java based
implementation of the FHIR specification.