APIs.
The capture and query interfaces are built against GS1's official EPCIS 2.0 OpenAPI description, pinned by digest and re-checked in CI. A capture that does not validate is refused as RFC 7807 problem+json carrying the standard's own exception types. The interface is written and under test; it is not hosted yet, and the way to be first through the hosted door is a capture key.
POST /capturePOST /translate
Build state, 29 July 2026. The capture gateway is written and passing its conformance tests; nothing is hosted yet. See How for the dimension, and What ships today for the dated ledger.