Network library for developing TCP/UDP/SSL/HTTP/WebSocket/MQTT client
Python HTTP library with thread-safe connection pooling
mitmproxy implemented with golang
Lightweight service virtualization/ API simulation / API mocking tool
An OOB interaction gathering server and client library
A high-performance HTTP benchmarking tool
The most advanced tool for HTTP API
Drill is an HTTP load testing application written in Rust
Nginx module for embedding Clojure or Java or Groovy programs
An HTTP toolkit for security research
Language-agnostic HTTP API Testing Tool
An extensible proxy for PC/Mobile/APP developer
A cross platform http sniffer with a web UI
Swagger to GraphQL API adapter