Martian Proxy is a programmable HTTP proxy designed to be used for testing. Martian is a great tool to use if you want to: - Verify that all of requests are secure - Mock external services at the network layer - Inject headers, modify cookies or perform other mutations of HTTP requests and responses - Verify that pingbacks happen when you think they should - Unwrap encrypted traffic By taking advantage of Go cross-compilation, Martian can be deployed anywhere that Go can target.