dumpprivkey

dumpprivkey "address"

Reveals the private key corresponding to ‘address’.

Then the importprivkey can be used with this output

Argument #1 - address

Type: string, required

The bitcoin address for the private key

Result

Name	Type	Description
key	string	The private key

Examples

bitcoin-cli dumpprivkey "myaddress"

bitcoin-cli importprivkey "mykey"

curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "dumpprivkey", "params": ["myaddress"] }' -H 'content-type: text/plain;' http://127.0.0.1:8332/