A2billing DIDx API

I have a small api task, I wanted to setup an API to allow end users, from the a2billing customer portal to purchase from DIDx, where customers can display directly, via api the DIDx stock, and allow the customer to push and make an order and assign him that DID. DIDx api documentation are here: [login to view URL] Then, the only functions to be configured by admin, needed are: Allow admin to introduce the perceptual margin to display the customer; Allow admin to introduce some country prefixes to exclude the didx stock. For example, we don't need to show the country X DIDs, because we're the carrier, and we have it in our own stock, so I need a function to introduce the country code YY, to be excluded, and if a customer select that country, he will see only our internal stock, and not the DIDx stock. Add a function to take care of releases, if a customer release a purchased DID, or if the DID is released from the system due to underpayment, we need to control that, and release that DID in didx, to avoid still paying for it, and remove it from our listing. Kindly bid for full project, we have several other tasks to work with, for long term deal, if your job is fine to go forward... You will have a development environment access, where you play as you like, and when the work is done, we deploy it in production, after approval... Please, this project is for individual developers only, NO ROOM FOR AGENCY CONTRACTORS, Kindly start your bid saying that you're **an individual developer** and not agency contractor, to know that you have read until the end.