I developed this service for CAPTcoin:
https://api.captcoin.com/address/sweep/What it does is asking for either an address or private key, then query the unspent outputs (from
insight API) and create a transaction.
If the address was provided then it's only informative. If the private key was provided then the TX is actually signed and sent to the specified address(es).
It can also been used as a REST API:
https://api.captcoin.com/address/#sweepWhile technically this is quite simple (I could port it for BTC in a few of hours) I understand there would be a huge trust issue
and that's why I haven't even bothered. I know nobody would use it.
Is there a service like this provided by a trusted party?
Edit: Or does anyone have an idea to provide this service (preferably including an API)
trustlessly?