ACH Provider w/ API

Does anybody know of an ACH provider (i.e. someone who allows debits from checking accounts by providing the checking account access information) which provides a secure API? I have a client who has an ACH provider, but it doesn't provide an API which is a real pain.

Thanks in advance!

hi maybe you can help me im looking for ach leads let me know if you got any

http://www.firstach.com/front/solutions_api.html