Particle Health supports a RESTful web service based on the FHIR and C-CDA standards. We expose APIs by which verified customers (data seekers) may access health records for over 250M unique patients across the US.
The docs available here will help you get started as a developer using the Particle Health platform. They assume familiarity with web communication tools and protocols, such as HTTP/S. You will need to create an account within our Developer Portal and navigate to the "Service Accounts" tab to generate your credentials.
To start, it's a good idea to familiarize yourself with our guides to Authentication and Handling Errors.
Next, you can read about the endpoints and domain-specific concepts we work with, such as Files, Patients, and Documents.