us-core

The TypeScript FHIR toolchain — typed query builder, code generator, FHIRPath, validators with invariants, SMART v2, terminology, and an MCP server

Generate an OpenAPI (Swagger) spec for any HL7 FHIR resource (R4/R4B/R5) — for typed model and client codegen in any language. US Core profiles, operations, and CapabilityStatement support. Offline CLI + library.

Epic Systems — independent third-party profile of a public API surface, by API Evangelist. Epic Systems Corporation is a privately held electronic health record (EHR/EMR) software company founded in 1979 and headquartered in Verona, Wisconsin, United States. Epic's software supports the medical records of a large share of U.S.

Clinically coherent synthetic FHIR® R4 test data for Python — US Core 6.1.0 conformant, deterministic, no JVM. Published on PyPI as carebundle.

Hand-rolled HL7 FHIR R4 TypeScript types, including US Core Patient. Published on npm as @briankfung/fhir-types.

AdvancedMD — independent third-party profile of a public API surface, by API Evangelist. AdvancedMD is a cloud practice-management, medical-billing and electronic health record (EHR) software company founded in 1999 and headquartered in South Jordan, Utah, serving independent ambulatory practices, mental-health and physical-medicine clinics, med sp

CharmHealth — independent third-party profile of a public API surface, by API Evangelist. CharmHealth is a healthcare technology platform offering Electronic Health Records (EHR), Practice Management, Revenue Cycle Management, Patient Engagement, and TeleHealth tooling. CharmHealth exposes an HL7 FHIR R4 API conformant to the US Core Implementation

Free, locally-hosted synthetic FHIR patient-data generator for relational R4/R5 datasets across 48 resource types with US Core support. No APIs, no real patient data.

Production engineering patterns for healthcare FHIR/HL7 data parsing, clinical ETL, and HIPAA de-identification & patient matching.

US Core Patient payload checks for FHIR R4 (Rust). Profiles, Must Support fields, SSN system URI, unknown DOB. Klarity Labs.

PHI-free test data for hospital and payer integrations: Synthea scrubbed, gated, made messy on purpose, as FHIR and HL7 v2, with measured findings

US Core AllergyIntolerance checks (FHIR R4, Rust): clinical/verification status, RxNorm/SNOMED on code, patient, reaction. Klarity Labs.

US Core Must Support and Patient identifier slicing (FHIR R4, Rust): MRN vs SSN systems, lab Observation fields. Klarity Labs.

US Core vital signs Observation checks (FHIR R4/Rust): BP components, vital-signs category, UCUM, LOINC mismatches. Klarity Labs.

Synthetic healthcare test data for Node.js and TypeScript. Generates seeded, reproducible fixtures in six formats, and none of it is real PHI.

Turn a wall of FHIR conformance errors into a ranked, plain-language report with concrete fixes and corrected FHIR.

US Core MedicationRequest (FHIR R4, Rust): RxNorm, intent, status, NDC-only detection. Klarity Labs.

CLI and library for fetching, analyzing, and comparing FHIR server CapabilityStatements. Profile detection for US Core, UK Core, AU Core, IPS, ISiK and more.

Explainable quality checks for synthetic FHIR R4 medication data.

Standards-based FHIR R4 connector: recall/retention scoring, US Core conformance pre-check, and SMART Backend Services. Synthetic data on public sandboxes. Not a production EHR integration.