> For the complete documentation index, see [llms.txt](https://docs.butterswap.me/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.butterswap.me/products/cross-chain-bridge.md).

# Cross-Chain Bridge

We provide our cross-chain bridge service in collaboration with our partner iSwap. The transaction fee is 0.2% and the transaction duration is shortened to 3 seconds.

| Chain   | Status |
| ------- | ------ |
| HECO    | Online |
| BSC     | Online |
| ETH     | Online |
| Polygon | Online |
| OEC     | Online |

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After cross-chain exchange, your assets will be sent to the same address in another chain.
{% endhint %}

{% hint style="success" %}
Notice that the same address on different chains share the same private keys and all belong to you.
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Cross-chain BUTTER tokens is provided by our partner AnySwap: <https://anyswap.exchange/#/bridge?bridgetoken=0x2f3bca2631fff538b8a55207f6c2081457e229f7&network=56>
{% endhint %}