Connection Parameter Values

Returns completion values for parameter fields on a persisted connection. Use this endpoint when the available options for one parameter depend on the connection's saved credentials or previously selected settings. For example, after a connection is authorized, the upstream service may be able to return lists of databases, schemas, or similar selectable values. For new setup flows, prefer [`POST /api/connection_types/{type}/parameter_values`](../../../../api-reference/connections/get-type-parameter-values), which lets you resolve completions before the connection has been created.