[xatnys]

Most major US banks currently support instant transactions up to a certain amount.

Check if your bank has an equivalent Zelle client; it's usually built into your banking frontend as a transfer or send money feature.

Other banks are also supported, but you'd have to register through the clearXchange network until your bank builds support directly.

[patio11]

I used this recently to send my little brother a wedding present. The UX was pretty poor from his side for enrollment, but after that was done the transfer was instant as advertised.