r4

Firely and Incendi's open source FHIR server

FHIR R4 to Swagger Converter Tool

r3 virtual machine, succesor of :r4

A stack-based VM/CPU with human-readable machine language

API for interacting with Renta4 (r4.com)

Using @radio4000/components' <r4-app/>

Arduino R4 WiFi HTTP webserver (porting of ESP32 Arduino Core WebServer library)

Arduino UNO R4 Minima Soccer forecast with Machine Learning (Edge Impulse)

Generated library for HL7 FHIR R4 (4.0.1)

Singularity recipies for singularity-hub

r4

Arduino_Base is a repo consisting of files specifically made for the Arduino Uno R4 board.

A FHIR search query validator that makes use of FHIR server's capability statement

A .Net Core version of FhirStarter - which hopefully can be adjusted to fit with any FHIR versjon

Accuracy-first Claude plugin for FHIR R4/R4B/R5 JSON guidance with source-aware claim labeling and clear validation boundaries

Searching for a DMX library for R4 Wifi

Top 5 Open Source FHIR Plugin R5 Tools 2026 – Source-Aware JSON Guidance

dark blue nds theme for various homebrew enabling flashcard firmwares

Temple Health — independent third-party profile of a public API surface, by API Evangelist. Temple University Health System (Temple Health) is the Philadelphia-based academic health system affiliated with the Lewis Katz School of Medicine at Temple University. It operates Temple University Hospital (Main Campus, Jeanes, Episcopal, Northeastern, Wom