Rest-API (Transaction Security Broker)API Specificationv1Synchronous Key OperationsSign a payloadSign a payload POST /v1/synchronousSign Create a synchronous (non-SKA) sign request Request Responses201400403404500501Successful OperationClient ErrorRequest refusedResource not foundServer ErrorImplementation ErrorWas this helpful?Get started withCloudHSM for free.Need help?Contact Support.Other questions?Ask Sales.