I have finished a simple market-maker for two external exchanges. Once it is polished, adding more exchanges will be easy.
I am looking for anybody who:
1) Has at least ~$20k to put in a MM bot
2) Is willing to accept standard market-maker risks (exposure to wrong asset at the wrong time for any given pair)
3) Is willing to accept "immature code" risk.
4) Has basic IT skills (launch a VPS, generate api keys) - YOU will be running the bot and taking full responsibility for it.
Please PM me.
Riverhead is already helping with IT support, if you are missing #4 but trust him that may be an option as well.
Advantages of being an early market maker is that you will get any the same trading fee discounts as I have managed to negotiate (one deal so far), and you won't have much competition.
I will open-source more and more of the code over time as competition heats up and this isn't such easy money.