Lists groups of addresses which have had their common ownership made public by common use as inputs or as the resulting change in past transactions.
curl --user myuser --data-binary '{"jsonrpc":"1.0","id":"1","method":"listaddressgroupings","params":[]}' -H 'content-type:text/plain;' http://127.0.0.1:8332/[
[
["bc1q...", 0.50000000, "payments"],
["bc1q...", 1.23456789, ""]
]
]