getAssetsByCreator

curl --request POST \
  --url https://mainnet.helius-rpc.com/ \
  --header 'Content-Type: application/json' \
  --data '{
  "jsonrpc": "2.0",
  "id": "1",
  "method": "getAssetsByCreator",
  "params": {
    "creatorAddress": "D3XrkNZz6wx6cofot7Zohsf2KSsu2ArngNk8VqU9cTY3"
  }
}'

{
  "jsonrpc": "2.0",
  "result": {
    "last_indexed_slot": 365750752,
    "total": 1,
    "limit": 1,
    "page": 1,
    "items": [
      {
        "interface": "Custom",
        "id": "JEH7cJxAKdprFG5AvdsY2c4ZqojxLBjFmw19zADV6oK5",
        "content": {},
        "authorities": [
          {}
        ],
        "compression": {},
        "grouping": [
          {}
        ],
        "royalty": {},
        "creators": [
          {}
        ],
        "ownership": {}
      }
    ]
  }
}