The FHIR Developer Sandbox upgrade to the February 2026 version is complete.
Additionally, the minimum required Hyperdrive version to connect to the Sandbox will increase with this upgrade. If you have trouble connecting to Hyperdrive after the upgrade is complete, ensure you have installed the latest version of Hyperdrive available here.
When everyone's on the same page, technology can make cool things happen. Epic is a strong supporter of the HL7® FHIR® standard as the future of REST-based interoperability. In addition to participating in the standards development process with HL7, Epic is also a member of the Argonaut Project and the Da Vinci Project, each aimed at accelerating the adoption of FHIR.
Epic's work with FHIR means that any health system, hospital, or clinic that uses Epic's comprehensive health record system can connect to any app that also supports FHIR to exchange health information, including but not limited to the U.S. Core Data for Interoperability – or USCDI - data classes and elements.
Epic on FHIR is a free resource for developers who create apps for use by patients and healthcare organizations.
Test APIs against example data
Software registration and client identifier management
Additional developer support documentation