Creating a Webpage with Web-API implementation

I need some one who can create Webpages with Web-API codes. With the API code the following should be possible: automate the creation of new customer accounts. automate adding and removing credit from customer accounts. automate adding phone numbers to customer accounts so they can use local access numbers. automate validation and resetting passwords of customer accounts. automate blocking and unblocking customer accounts. get user info, like balance and current active phone numbers. get call detail records of each customer account Will be provided: Webhosting, Database(s), mail accounts, SSL, etc , API-Codes, Domain, space for coding or testing, (can be provided VoIP). WedDesign is not mandatory. The API webstucture is important. i.e. a signup page should be filled out with fields for Name, Address, Greeting, Password, etc. This should be stored in DB. Parts of it should be send to an already existing Page via Web-API (XML) like ([login to view URL]:TESTACCOUNT&password:123456&phone:447955445454&country:CN45) No direct IFC. For further questions please do not hesitate to contact me. Kind Regards