curl --request GET \
  --url https://toncenter.com/api/v3/jetton/masters

{
  "address_book": {},
  "jetton_masters": [
    {
      "address": "<string>",
      "admin_address": "<string>",
      "code_hash": "<string>",
      "data_hash": "<string>",
      "jetton_content": {},
      "jetton_wallet_code_hash": "<string>",
      "last_transaction_lt": "0",
      "mintable": true,
      "total_supply": "<string>"
    }
  ],
  "metadata": {}
}

{
  "code": 123,
  "error": "<string>"
}