FHIR
API Specifications
Build Apps

Documentation
- App Developer Guidelines
- App Creation & Request Process Overview
- App Creation & Request Process Step-by-Step
- User Context
- Requesting a Listing in Showroom
- Designing an Efficient Application
- OAuth 2.0 Specification
- FHIR Tutorial
- App Default FHIR Version
- ID Types for FHIR APIs
- Sandbox Test Data
- Patient-Facing Apps Using FHIR
- Search Parameters
- FHIR Bulk Data Access Tutorial
- CDS Hooks Tutorial
- Troubleshooting
- Sex, Gender, & Names
- Vaccine Credentials
- International Patient Summary Specification
- Payer Integration with Epic Provider Systems
Jump To
- Showroom
- open.epic
- Open@Epic Conference

My Apps

Sign Up to Access

Epic on FHIR is a free resource for developers who create apps for use by patients and healthcare organizations.

Testing Sandbox

Test APIs against example data

Client Registration

Software registration and client identifier management

Documentation

Additional developer support documentation

Already have an account?

1979 Milky Way, Verona, WI 53593

© 1979-2025 Epic Systems Corporation. All rights reserved. Protected by U.S. patents. For details visit www.epic.com/patents.
HL7®, FHIR® and the FLAME mark are the registered trademarks of HL7 and are used with the permission of HL7. The use of these trademarks does not constitute a product endorsement by HL7.

Epic, open.epic, and Epic on FHIR are trademarks or registered trademarks of Epic Systems Corporation.