> ## Documentation Index
> Fetch the complete documentation index at: https://docs.caldera.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# Native Gas Token

With Caldera Chains, you can deploy Arbitrum and ZKsync rollups with a custom native gas token.

### What tokens can I use?

You can use almost any `ERC-20` token. as your rollup's native token. This includes your protocol tokens, or stablecoins such as USDC or DAI.

The only tokens that cannot be used as rollup native tokens are [elastic tokens](https://academy.binance.com/en/articles/elastic-supply-tokens-explained) due to their volatile supply. Thankfully, very few tokens employ this type of design.

It is a [requirement](https://docs.arbitrum.io/launch-arbitrum-chain/configure-your-chain/common-configurations/use-a-custom-gas-token-rollup#requirements-of-the-custom-gas-token) that your native gas token is a standard `ERC-20` token.