I have multiple wallets, I want to transfer all of the money to 1 wallet of some other person. But I want to do this as one transaction to avoid fees. Is this possible with bitcoind API?
For programmers interested in the underlying technical question here (unrelated to BitcoinD service), the Bitcoin protocol itself is capable of making a transaction from multiple inputs of different wallets according to this answer here: bitcoin.stackexchange.com/a/51687/4325 --- I have not verified this claim, am just sharing for reference.– Albert RenshawJul 31, 2020 at 1:47
If you are using a wallet which supports importing private keys, such an Bitcoin Core, you can just import the private key of your other wallet: https://bitcoin.stackexchange.com/a/5944/14325