Quick research, please help :)

[Alfarin]

I'm doing a quick research, be greatly appreciated if anyone can help me by providing information on the following:

Enom Reseller Accounts:
1. Does it have 'test' mode where I can use to test my code working with their API?
2. Lowest cost 'free' account I can get my hands on that does not require initial deposit?

WildWest Reseller Accounts:
1. Does it offer API?
2. Does it have 'test' mode where I can use to test my code working with their API?
3. Lowest cost 'free' account I can get my hands on that does not require initial deposit?

Any other registar that offers API?
1. Does it offer 'test' mode where I can test my code?
3. Lowest cost for 'free' account w/o initial deposit?


I need to know because I'm thinking about getting a reseller acct to acquire domains cheaper cost, but I'd rather not use a pre-done interface as most of them doesn't do things I like. So if people can provide information of above, I'd be greatly appreciated.