> For the complete documentation index, see [llms.txt](https://whitepaper.starmech.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://whitepaper.starmech.io/viii.-frequently-asked-questions.md).

# VIII. Frequently Asked Questions

1. **What is the gas token on Stavax Testnet?**

Initially, the gas fee remains denoted in $AVAX. In the future, you will have the option to utilize $STA for gas fee payments.

2. **What is Omnichain?**

Omnichain enables seamless and secure communication and interaction of data and assets across various blockchains, enhancing interoperability.

Omnichain can be understood as including Multichain and Cross-chain. Because Multichain is multi-chain, and Cross-chain is cross-chain interaction, when we combine these two features, it is Omnichain. Omnichain is a multi-chain connection and those chains can interact with each other.