I need an app to automate USSD requests

I need an android app to send USSD requests, review response by presenting it to the user to decide which option to choose, and resending requests. This app will also have an automatic mode where it sends ussd requests, and reply responses as dictated by the user (let me call this a 'ussd sequence'). Then, there would be one last mode which enables the app to send an http request to a user-defined url (specifying with a GET parameter, the name of the network provider of the SIM card in the phone) of which the request will return some data (in json form). From this data, the app will be instructed on whether to run a given ussd sequence, using the some of the obtained data as reply to responses. I will upload pictures to this project later on for better clarity.