Some API for get bitcoin and send automatically?

[reasen]

Yep, i searching some method for do one automatic thing, when some people send one payment in the address this send some bitcoins to the same address in x time, is it possible? Thanks.

[Automatic]

%s is parsed from walletnotify.

Code:

sleep 5;
$amount = parseJsonAndGetAmount(bitcoind gettransaction %s);
bitcoind sendtoaddress $address $amount;

You get the point.

[reasen]

thanks for pseucode is all i need.