This API is made available for software developers. If you are a software developer and you want to test the system you will first need to request that we allocate some Monopoly money to an account we will create for you on the development server. Send an Email request to firstname.lastname@example.org and include the cell number that you want us to register and allocate funds to.
You can download the API here. Once you have tested successfully, you will need to switch to live mode on the API (under Default Settings). Then put some real money in the bank account and continue as normal.