Getting Started

Oystehr — The complete health tech developer platform

Oystehr is a cloud-service for building health software, also known as a headless EHR. Its secure and compliant backend services are designed to make it easier to build features such as:

  • Telemedicine EHRs (like our sample EHR, Ottehr (opens in a new tab)).
  • Scheduling, intake apps, and patient portals.
  • AI-enabled clinical decision support tools.
  • Analytics dashboards and reporting tools.
  • Insurance eligibility checking and claims management.

Integrate with your existing system, or build something totally new!

We believe that the future of healthcare is a vibrant ecosystem of apps and services that work together to reduce time to market and cut costs. We're building the infrastructure to make that future a reality.


Overview of the Oystehr platform (click to zoom),

Oystehr System Diagram
Oystehr System Diagram

In the diagram, the blue boxes represent services that are provided by Oystehr. This includes:

  • Authentication — Secure your apps with OAuth 2.0 standard authentication. When Users log into your applications, you get the access token used to hit Oystehr's FHIR and Project APIs.

  • Identity and Access Management — Every User is assigned an access policy or one or more roles that defines the scope of APIs they can hit and data they can access.

  • FHIR API — At the core of the Oystehr platform is the FHIR (opens in a new tab) compliant FHIR API. FHIR is the industry standard for exchanging electronic healthcare information. If you're new to FHIR, you will want to start with our FHIR overview guide.

  • Project API — The Project API includes endpoints for every other service in the Oystehr platform:

    • App — Login and user management for your applications.
    • IAM — Covers Developer access, M2M Client access (for API access from scripts and Zambda Functions), and Role configuration.
    • Messaging — HIPAA-compliant rails for building healthcare messaging workflows.
    • Project — Configure project-wide settings.
    • RCM — Perform real-time health insurance eligibility checks.
    • Telemed — Build cross-platform video calls into your applications.
    • Z3 — HIPAA-compliant file storage and retrieval.
  • Zambda — Run custom code with Oystehr's FHIR-integrated Function as a Service solution. Run custom code when certain conditions are met in the FHIR store, at a regular time or interval with a cron job, or using authenticated and anonymous REST API invocations.