importprivkey "privkey" ( "label" rescan )
Adds a private key (as returned by dumpprivkey) to your wallet. Requires a new wallet backup.
Hint: use importmulti to import more than one private key.
Note: This call can take minutes to complete if rescan is true, during that time, other rpc calls
may report that the imported key exists but related transactions are still missing, leading to temporarily incorrect/bogus balances and unspent outputs until rescan completes.
Note: Use "getwalletinfo" to query the scanning progress.
Note: This command is only compatible with legacy wallets. Use "importdescriptors" with "combo(X)" for descriptor wallets.
Arguments:
1. privkey (string, required) The private key (see dumpprivkey)
2. label (string, optional, default=current label if address exists, otherwise "") An optional label
3. rescan (boolean, optional, default=true) Rescan the wallet for transactions
Result:
null (json null)
Examples:
Dump a private key
> bitcoin-cli dumpprivkey "myaddress"
Import the private key with rescan
> bitcoin-cli importprivkey "mykey"
Import using a label and without rescan
> bitcoin-cli importprivkey "mykey" "testing" false
Import using default blank label and without rescan
> bitcoin-cli importprivkey "mykey" "" false
As a JSON-RPC call
> curl --user myusername --data-binary '{"jsonrpc": "1.0", "id": "curltest", "method": "importprivkey", "params": ["mykey", "testing", false]}' -H 'content-type: text/plain;' http://127.0.0.1:8332/