https://api.haau3.com. Each
service is a product you can build on. Scheduling is available today, with more services
planned.
Two layers of interoperability
Modern FHIR APIs solve syntactic interoperability: data shaped to a shared standard so systems can exchange it. That is necessary, but well-formed data can still lose meaning along the way. The haau3 Platform works on the semantic layer too. It preserves clinical meaning as data moves between systems and enriches it where that adds clarity, so what you receive is correct in structure and faithful in meaning. The APIs are engineered to be fast and quick to integrate, and the clinical content behind them is carefully vetted.Start building
Quickstart
Get a key and make your first authenticated call.
Authentication
How API keys work and the 401 contract.
SMART Scheduling Links
How the Scheduling service aggregates provider availability.
API Reference
Interactive reference for every endpoint, generated from our contracts.