# get_asset_balance · FT4 Rell API · Chromia Docs (concept)

> @mount("ft4.get_ asset_ balance")
query get_ asset_ balance(account_ id: byte_ array, asset_ id: byte_ array): (rowid: rowid, asset: (id: byte_ array, name

Source: https://docs.chromia.com/pages/ft4-rell/-f-t4-library/lib.ft4.external.assets/get_asset_balance/

QUERY

# get\_asset\_balance

```signature
@mount("ft4.get_asset_balance")
query get_asset_balance(account_id: byte_array, asset_id: byte_array): (rowid: rowid, asset: (id: byte_array, name: text, symbol: text, decimals: integer, blockchain_rid: byte_array, icon_url: text, type: text, supply: big_integer), amount: big_integer)?
```

[Source](https://gitlab.com/chromaway/ft4-lib/-/blob/development/rell/src/lib/ft4/external/assets/queries.rell#lines-24)

Returns how much of an asset the account holds. This query returns
`null` if the account does not have the asset.

**Parameters**

* **account\_id** — the id of the account to query the balance for
* **asset\_id** — the id of the asset held by the account

[View this page on docs.chromia.com](https://docs.chromia.com/pages/ft4-rell/-f-t4%20-library/lib.ft4.external.assets/get_asset_balance.html)Generated API reference, mirrored from the live docs