Flowable is a BPNM system. You can do a lot of async calls with it. https://www.flowable.com/open-source https://www.flowable.com/open-source We use it for a c

Flowable is a BPNM system. You can do a lot of async calls with it. https://www.flowable.com/open-source https://www.flowable.com/open-source We use it for a complex pricing process that invokes 30-40 micro services that can take up to minutes per step.