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How do services like Square link bank accounts to people's personal accounts? Is there some API they're plugging into? Is this the same as ACH?

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Is this the same as ACH?

It's not "the same as ACH", it is ACH. All the transfers to and from your bank accounts to Square/PayPal/other bank accounts go through ACH. The exception is wire-transfer, which goes in a different (and much faster, and more expensive) route.

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What's the other route called? Is there a website that describes exhaustively these routes? Who controls them? – Kinnard Hockenhull Feb 12 '13 at 3:01
@KinnardHockenhull… – littleadv Feb 12 '13 at 4:07

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