It's in the details : - wamp is a language neutral spec and an open standard registered at iana. - implementations not only exist in many languages but they a

It's in the details : - wamp is a language neutral spec and an open standard registered at iana. - implementations not only exist in many languages but they are all interroperable transparently despite all feeling very native to their own language. A failing rpc in js will see the error propagated as a python exception on the other side. - it works in the browser, yes, but it's also very usable as a way to implement micro services or iot clusters. You are not tied to a particular use case or framework. - not not simple rpc but routed rpc, so the clients don't need to know each others and you can implement fallback, hot reload or load balancing - security and authentigication are first class citizen - wamp comes with a lot of goodies like meta events for introspection or wildcards