HAPI FHIR
The Open Source FHIR API for Java.
Overview
HAPI FHIR is a leading open-source implementation of the FHIR standard for Java. It provides a comprehensive library for creating and parsing FHIR resources, as well as a complete, out-of-the-box FHIR server. It is widely used by developers, academic institutions, and commercial vendors (like Smile Digital Health) as a foundation for building FHIR-enabled applications and platforms.
✨ Key Features
- Complete open-source implementation of FHIR
- FHIR client and server libraries
- Plain (JPA) and Terminology servers
- Support for multiple FHIR versions (R5, R4, STU3, DSTU2)
- Large and active community
🎯 Key Differentiators
- Most mature and widely adopted open-source FHIR implementation
- Written in Java, a popular enterprise language
- Strong backing from a commercial entity (Smile Digital Health) which contributes to its development
Unique Value: Provides a free, open-source, and highly comprehensive implementation of the FHIR standard, enabling widespread adoption and innovation without vendor lock-in.
🎯 Use Cases (4)
✅ Best For
- Powering numerous open-source and commercial healthcare applications
- Used in connectathons and educational settings to teach FHIR
- Foundation of the Smile Digital Health platform
💡 Check With Vendor
Verify these considerations match your specific requirements:
- Organizations without Java development expertise
- Teams that require a fully managed, commercially supported platform without any self-hosting or development effort
🏆 Alternatives
As an open-source library, it requires more development and operational effort than commercial, managed platforms. Compared to other open-source options, it is generally considered the most feature-complete and widely used.
💻 Platforms
✅ Offline Mode Available
🔌 Integrations
🛟 Support Options
- ✓ Live Chat
- ✓ Dedicated Support (Commercial support available from Smile Digital Health tier)
🔒 Compliance & Security
💰 Pricing
✓ 14-day free trial
Free tier: The entire software is free under the Apache 2.0 open-source license.
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