Swagger/OpenAPI First framework for Python on top of Flask
The Go support for Google's protocol buffers
Record your test suite's HTTP interactions and replay them
Auto-validates api requests, responses, and securities using ExpressJS
Development toolkit for Web Services and XML data bindings for C & C++
A simple RPC framework with protobuf service definitions
jsonapi.org style payload serializer and deserializer
Tom Preston-Werner's obvious, minimal language
JUL - The JavaScript UI Language