setlabel "address" "label"
Sets the label associated with the given address.
Arguments:
1. address (string, required) The bitcoin address to be associated with a label.
2. label (string, required) The label to assign to the address.
Result:
null (json null)
Examples:
> bitcoin-cli setlabel "1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XX" "tabby"
> curl --user myusername --data-binary '{"jsonrpc": "1.0", "id": "curltest", "method": "setlabel", "params": ["1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XX", "tabby"]}' -H 'content-type: text/plain;' http://127.0.0.1:8332/