What is a FHIR CapabilityStatement?

A FHIR CapabilityStatement is the machine-readable contract a FHIR server publishes at its /metadataendpoint. It declares exactly what the server can do: which resource types it supports, the interactions and search parameters available on each, the operations it exposes, and the SMART on FHIR security model it enforces. Clients read it to discover a server's capabilities before they make a single request.

Interoperall's CapabilityStatement Designer lets you build that contract for a real FHIR server or for a Façade you place in front of legacy systems — all in the browser, with no setup. Define your capabilities once, validate them against FHIR R4, and publish a conformant resource you can serve directly.

Everything in One Place

Resources: declare supported resource types and their interactions.
Search parameters: document the searches each resource supports.
Operations: list custom and standard FHIR operations.
SMART scopes: describe the authorization model your endpoint enforces.

Validate Before You Publish

Run your draft through the FHIR Validator to confirm it is a conformant R4 resource, then publish it as the canonical description of your server or façade.