Submit HTTP Requests from Shortcuts on your Home Screen.
HTTP Request Shortcuts — description
Place shortcuts (widgets) on your home screen to submit HTTP(S) requests to all your favorite RESTful APIs, webservices and other URL resources. Great for home automation projects!
Build powerful workflows by dynamically injecting values into the request through global variables or by adding JavaScript code snippets to process the HTTP response.
This app is open source, find it on Github: https://github.com/Waboodoo/HTTP-Shortcuts. It's also completely free and contains no ads, because who wants those anyway.