It's really very-very fast, and no need for external schema registry. And it's really as simple as JSON. Has great language support. https://github.com/thekvs/

It's really very-very fast, and no need for external schema registry. And it's really as simple as JSON. Has great language support. https://github.com/thekvs/cpp-serializers#results https://github.com/thekvs/cpp-serializers#results That said, currently I don't work with it in any projects. Apparently it hasn't really caught on.