Nirmitee.io

Open Source

Infrastructure you can Inspect.
Building blocks you can Trust.

We open-source the tools, libraries, and integrations we build for ourselves — so the entire healthcare technology ecosystem benefits. FHIR, ABDM, RCM and engineering tooling, built to make healthcare more interoperable.

Open Source building blocks: FHIR, ABDM, RCM and Engineering Tools, connected under an interoperable healthcare platform

17repositoriesOpen-source projects

4focus areasEngineering · RCM · FHIR · ABDM

FHIR + ABDMOpen standards for
better healthcare

Production-testedReal-world use cases
and deployments

Featured Project

FHIR Prior Auth Engine

FHIR-native prior-authorization workflow engine — a reference implementation of orchestration, async holds, human-in-the-loop review and event sourcing for CMS-0057 / Da Vinci (CRD · DTR · PAS).

KotlinSpring BootFHIR R4Apache-2.0
View repository →
Provider request flows through the orchestration engine to payer integration and status and events, with FHIR native, modular architecture, production ready and real-world use cases highlighted

Explore All Projects

Engineering Tooling

Developer tools and libraries to accelerate healthcare product development.

Integration Mock Server Template

MIT

Template for a dynamic API mock server — MongoDB-backed config, Handlebars templating, webhooks and a web UI, for testing integrations.

MountebankDockerMongoDB
View on GitHub

HIPAA Spring Boot Starter

Apache-2.0

HIPAA-by-default for Spring Boot: annotate @Phi and get field-level encryption, a tamper-evident audit trail and minimum-necessary access control.

KotlinSpring Boot
View on GitHub

Health Components

MIT

React + TypeScript component library for clinical and healthcare UIs, styled with Tailwind CSS.

ReactTypeScriptTailwind
View on GitHub

Remote Patient Monitoring

MIT

Open-source RPM platform — multi-tenant workspaces, RBAC, SSO, care plans and vitals monitoring.

TypeScriptNext.js
View on GitHub

Frappe-Azure-Blob-Storage-Attachment

MIT

Frappe/ERPNext app that stores file attachments in Azure Blob Storage instead of the local filesystem.

Python
View on GitHub

Mirth Connect Cookbook

MIT

Production-grade Mirth Connect recipes, transformers, channels and scripts — tested in real deployments.

JavaScriptHL7 v2
View on GitHub

US Interoperability & RCM

Interoperability tools, EDI utilities and RCM accelerators for the US healthcare ecosystem.

Clearinghouse Simulator

MIT

A drop-in stand-in for a real clearinghouse SFTP/EDI integration. Validated against major formats.

JavaScriptX12 EDI
View on GitHub

EDI Idempotent Processor

Apache-2.0

Idempotent healthcare EDI processing: dedup by ISA/GS, effectively-once processing, exactly-once effects. Tests and a live playground.

TypeScriptX12
View on GitHub

X12 ↔ FHIR Mapper

Apache-2.0

Maps X12 837/835 to FHIR R4 (Claim / ClaimResponse) through an anti-corruption layer. Includes a test-and-map playground.

TypeScriptX12FHIR R4
View on GitHub

FHIR Platforms

Open platforms and reference implementations for FHIR-based applications.

EHRConnect

Apache-2.0

Open-source EHR platform built on FHIR R4 — multi-tenant clinical workflows, specialty and country-specific configuration, theming and task management.

TypeScriptFHIR R4
View on GitHub

Headless EHR — FHIR R4

Apache-2.0

A headless EHR platform built on FHIR R4 — multi-tenant, HIPAA-ready, with ABAC authorization, SMART on FHIR, field-level encryption and bulk export.

GoFHIR R4PostgreSQL
View on GitHub

OpenMirth Console

Apache-2.0

Open-source operations layer for Mirth Connect and OIE — modern web admin, clinical observability and channel CI/CD.

TypeScriptNext.jsMirth Connect
View on GitHub

ABDM

Open-source implementations and resources for India's ABDM (Ayushman Bharat Digital Mission) ecosystem.

ABDM Node.js SDK

MIT

TypeScript SDK for the ABDM V3 APIs — ABHA, HIP, HIU, consent and health-information exchange.

TypeScriptABDM V3
View on GitHub

ABDM V3 Postman Collection

MIT

Complete Postman collection for the ABDM V3 APIs — every endpoint, with sandbox and production environments.

PostmanABDM V3
View on GitHub

ABDM FHIR Bundle Examples

MIT

FHIR R4 bundles for six ABDM HI types: OPConsultation, Prescription, DiagnosticReport, DischargeSummary, ImmunizationRecord and WellnessRecord.

FHIR R4ABDM V3
View on GitHub

ABDM V3 Error Catalog

MIT

Every ABDM V3 error code, its actual cause and the fix — in one place.

DocumentationABDM V3
View on GitHub

Build faster on proven healthcare foundations

Explore our open-source projects or work with our team to accelerate your healthcare product development.