curl --request GET \
  --url https://tonapi.io/v2/accounts/{account_id}/jettons/{jetton_id}

{
  "balance": "597968399",
  "wallet_address": {
    "address": "0:10C1073837B93FDAAD594284CE8B8EFF7B9CF25427440EB2FC682762E1471365",
    "is_scam": true,
    "is_wallet": true,
    "name": "Ton foundation",
    "icon": "https://ton.org/logo.png"
  },
  "jetton": {
    "address": "0:0BB5A9F69043EEBDDA5AD2E946EB953242BD8F603FE795D90698CEEC6BFC60A0",
    "name": "Wrapped TON",
    "symbol": "WTON",
    "decimals": 9,
    "image": "https://cache.tonapi.io/images/jetton.jpg",
    "verification": "whitelist",
    "score": 123,
    "custom_payload_api_uri": "<string>",
    "description": "<string>"
  },
  "price": {
    "prices": {
      "TON": 1.3710752873163712
    },
    "diff_24h": {
      "TON": "-1.28%"
    },
    "diff_7d": {
      "TON": "-2.74%"
    },
    "diff_30d": {
      "TON": "-0.56%"
    }
  },
  "extensions": [
    "custom_payload",
    "non_transferable"
  ]
}