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>",
    "scaled_ui": {
      "numerator": "597968399",
      "denominator": "597968399"
    },
    "description": "<string>"
  },
  "price": {
    "prices": {
      "GRAM": 1.3710752873163712
    },
    "diff_24h": {
      "GRAM": "-1.28%"
    },
    "diff_7d": {
      "GRAM": "-2.74%"
    },
    "diff_30d": {
      "GRAM": "-0.56%"
    }
  },
  "defi_asset": {
    "token_type": "staking",
    "defi_provider": {
      "name": "Morpho",
      "description": "Earn up to 15% yield on your crypto",
      "link": "https://lite.morpho.org/tac/earn/",
      "icon": "<string>",
      "card": "<string>",
      "full": "<string>",
      "tag": "morpho",
      "miniapp_link": "https://t.me/MorphoOrgBot"
    },
    "type": "staking",
    "pool_assets": {
      "asset0": {
        "type": "native",
        "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>",
          "scaled_ui": {
            "numerator": "597968399",
            "denominator": "597968399"
          },
          "description": "<string>"
        }
      },
      "asset1": {
        "type": "native",
        "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>",
          "scaled_ui": {
            "numerator": "597968399",
            "denominator": "597968399"
          },
          "description": "<string>"
        }
      }
    }
  },
  "extensions": [
    "custom_payload",
    "non_transferable"
  ],
  "lock": {
    "amount": "597968399",
    "till": 1678223064
  }
}

{
  "error": "<string>",
  "error_code": 123,
  "details": {
    "required": 123,
    "available": 123
  }
}