httpbin

httpbin is a HTTP request & response service. It is written in Python and Flask. With the HTTP methods you can test different HTTP verbs. You also have auth methods, status codes to generate responses with given status code, request inspection features to inspect the request data, response inspection to inspect the response data like caching and headers. The response formats feature returns responses in different data formats, the dynamic data feature generates random and dynamic data. You can also create, read and delete Cookies. The images feature returns different image formats, and you can return different redirect responses as well. Finally, you can return anything that is passed to request.