listaddressgroupings none

The listaddressgroupings RPC lists groups of addresses that may have had their common ownership made public by common use as inputs in the same transaction or from being used as change from a previous transaction.

bitcoin-cli listaddressgroupings

*bitcoin-cli help listaddressgroupings

listaddressgroupings

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

Result:
[               (json array)
  [             (json array)
    [           (json array)
      "str",    (string) The bitcoin address
      n,        (numeric) The amount in BTC
      "str"     (string, optional) The label
    ],
    ...
  ],
  ...
]

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