Customised personal trading tool(Trading API connect and order placing script)

Hello,

Is there anybody who can connect a trading api which is provided by a broker?
This is a sort of building a very simple personal trading tool using the api.

It should work as below.

-A broker provide api(log in , real time price, trading pair etc.....)

-You connect the api that makes me to log in and log out.

-You need to connect them and receive relevant data that makes me to trade
Ex) I select EUR/USD then I receive the price

-You also need to write a script that works under a certain condition.

That's all. The api document is provided but unfortunately it is not english but if you have had experience of any similar job, you can do I suppose.