JsonRpcPhp is a class that sends HTTP requests to a given JSON RPC server to call a specified function, passing any additional parameters. It can also send multiple JSON RPC requests and return the results of all calls. Another class can process server requests by registering a given object of service class and dispatching requests to be handled by that object.
TeXstudio is a fully featured LaTeX editor. It is designed to make writing LaTeX documents as easy and comfortable as possible. It features an integrated PDF viewer with (almost) word-level synchronization, live inline preview, advanced syntax highlighting, and live checking of references, citations, LaTeX commands, spelling, and grammar.
Instagram API integration with PHP can access an Instagram user's account using its API. It can send HTTP requests to the Instagram API Web servers using the OAuth protocol to access the account of a user with his permission. The class retrieves a token which it can use to send subsequent API requests to get the user feed, the user publications, the followers and who the user follows, and the user's most popular photos.