What exchanges to include?

[Mcoroklo]

I am creating a service, where I have to make implementations to different Bitcoin exchanges. In this scenario, I have the use case "Find the cheapest place to buy Bitcoins, and purchase for 100$".

Currently, I thought about using:
- Bitstamp
- Btc-E

However, some questions:
- Are there more exchanges we should consider? I don't see MtGox as a serious option and want to avoid them
- Currently Btc-E is 8$ cheaper than Bitstamp, why is that? Why would anyone ever buy the Bitstamp then?
- Are there always volume enough to buy at a consistent price at these exchanges?

[al.matic]

Presumably, another use case would be "find the most expensive place to sell bitcoins"?

AFAIK, when sending USD to btc-e you must pay a high transactio fee.

[MAbtc]

I've heard it's hard to fund a BTC-E account with dollars. I'm not sure -- I funded it P2P on the forum originally and have since only deposited BTC, not fiat. But yeah, Bitstamp and BTC-E.... maybe CampBX? Do they have any market share at this point? BTCChina maybe, for reference, since the Chinese market has become more important. No idea what it takes to fund a CNY account, though.

[Mitchell]

Use BitCoinAverage's API. It gives the current price on all the big exchanges for a lot of currencies.

Example: https://api.bitcoinaverage.com/exchanges/EUR

[Mcoroklo]

Wow, the BitcoinAverage API is really nice.

Does anyone have good experiences with other exchanges?

Thanks a lot for the answers so far.

[nobbynobbynoob]

Could now add BTCChina, and use a tool like XE.com to autoconvert the exchange rate into USD or whatever.

[Mitchell]

Wow, the BitcoinAverage API is really nice.

Does anyone have good experiences with other exchanges?

Thanks a lot for the answers so far.

I like mcxNOW, but that is an altcoin exchange, so I don't know if you have any use for it.
Have fun using their API. I really like it :3

[AsiaNexgen]

You could include our exchange anx.hk

[daybyter]

You want to create public API implementations? What language are you using? Maybe we could share some code? I use java..