Hi Gliss,

We have released a new feature on masterXchange.com. It allows any user to create a live market in less than a minute for any asset created on Mastercoin or Counterparty for a small one time fee of 0.2 BTC. It creates automatically the market including charts, visual order book and API.
We are planning to release support for coloredcoin next week and probably NXT in the near futur.

You can try it here : https://masterxchange.com/createmarket.php?s=1

We also publish the list of our markets so you can update our list of coins and assets automatically if you'd like to : https://masterxchange.com/api/v2/markets.php

Let me know if you need anything else.

Keep on the great work !