Firely and Incendi's open source FHIR server
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Updated
Oct 4, 2026 - C#
Firely and Incendi's open source FHIR server
CLI and library for diffing and validating FHIR R4/R4B/R5 JSON resources
Generate valid FHIR R4/R4B/R5 test data with country-aware identifiers — CLI, TypeScript library, pipe-friendly, AI-friendly
CLI and library for fetching, analyzing, and comparing FHIR server CapabilityStatements. Profile detection for US Core, UK Core, AU Core, IPS, ISiK and more.
Top 5 Open Source FHIR Plugin R5 Tools 2026 – Source-Aware JSON Guidance
Accuracy-first Claude plugin for FHIR R4/R4B/R5 JSON guidance with source-aware claim labeling and clear validation boundaries
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