> For the complete documentation index, see [llms.txt](https://franky-murrey.gitbook.io/aptos-helper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://franky-murrey.gitbook.io/aptos-helper/usage/settings/coin-contracts.md).

# Coin contracts

To add more coins for use in modules, follow these steps

All tokens data is stored in `contracts/tokens.json`

{% hint style="info" %}
Tokens set up by default are lzUSDT and lzUSDC
{% endhint %}

You can add new tokens using UI interface through specific module in *Tools* window:

{% content-ref url="/pages/2H6YVf6BQxXv4JG9jQdF" %}
[Tools](/aptos-helper/usage/tools.md)
{% endcontent-ref %}

You can also directly add to the json file found at `contracts/tokens.json`, here's example:

{% code title="tokens.json" fullWidth="true" %}

```json
[
    {
        "symbol": "aptos",
        "contract": "0x1::aptos_coin::AptosCoin",
        "gecko_id": "aptos",
        "is_pancake_available": true,
        "is_abel_available": true,
        "is_liquid_swap_available": true
    },
    {
        "symbol": "usdc",
        "contract": "0xf22bede237a07e121b56d91a491eb7bcdfd1f5907926a9e58338f964a01b17fa::asset::USDC",
        "gecko_id": "usd-coin",
        "is_pancake_available": true,
        "aptos_bridge_handle": "0x8957ca6dab8475411756bfbb17e93534cc15bd942c7f275234be5381c3a48dff",
        "is_abel_available": true,
        "is_thala_available": true,
        "is_liquid_swap_available": true
    },
    {
        "symbol": "usdt",
        "contract": "0xf22bede237a07e121b56d91a491eb7bcdfd1f5907926a9e58338f964a01b17fa::asset::USDT",
        "is_pancake_available": true,
        "gecko_id": "tether",
        "aptos_bridge_handle": "0x2e46d98566716dc078ca858162169242fd0e45d7f2f8fb4799767c17e0af99bd",
        "is_abel_available": true,
        "is_thala_available": true,
        "is_liquid_swap_available": true
    },
    {
        "symbol": "cake",
        "contract": "0x159df6b7689437016108a019fd5bef736bac692b6d4a1f10c941f6fbb9a74ca6::oft::CakeOFT",
        "gecko_id": "pancakeswap",
        "is_pancake_available": true,
        "aptos_bridge_handle": "0xba4efb408cd949a289e2966cf7f94a5910817772881c175a1a71748ef442638",
        "is_abel_available": true,
        "is_liquid_swap_available": true
    }
]
```

{% endcode %}

***

## Gecko ID

To use the token comparison feature in the swap module, you must configure the token ID (like for MATIC in the screenshot) from CoinGecko.

<div align="left"><figure><img src="https://4053290323-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FIfK7rdLIiBmMN0rsB8dc%2Fuploads%2Fn7u8SnEuB1k2LXGJcsIe%2Fgecko_id.png?alt=media&amp;token=e5a029ac-16df-4b9b-a798-c8031d809cfc" alt=""><figcaption></figcaption></figure></div>

## Is available?

All the 'is\_available' fields are used to determine if a coin is available on a specific protocol. If you're adding custom coins, make sure to fill out these parameters for each coin you include.

{% hint style="info" %}
**Aptos bridge handle** needs for claim after coin bridged from EVM chain, you can find more references in Layer Zero and The Aptos Bridge docs.
{% endhint %}