scantxoutset

curl --user myuser --data-binary '{"jsonrpc":"1.0","id":"1","method":"scantxoutset","params":["start",["addr(bc1q...)"]]}' -H 'content-type:text/plain;' http://127.0.0.1:8332/

{
  "success": true,
  "txouts": 94523182,
  "height": 840000,
  "bestblock": "00000000000000...",
  "unspents": [
    {
      "txid": "a1075db55d...",
      "vout": 0,
      "scriptPubKey": "0014...",
      "desc": "wpkh(...)#...",
      "amount": 0.50000000,
      "height": 839000
    }
  ],
  "total_amount": 0.50000000
}