Depreciation warningThis is the API documentation of the Marble "v0", legacy API. It will be maintained for compatibility until February 1st, 2026, but will no longer be improved.
We strongly recommend you migrate to the official v1 Marble API as soon as possible.
Marble exposes a synchronous decision API that is designed to be embedded into your real-time processes (for example, to approve or reject a transaction before it is executed).
Interacting with this API lets you create, list and read decisions.