> For the complete documentation index, see [llms.txt](https://docs.kaisar.io/kaisar-network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.kaisar.io/kaisar-network/kaisar-architecture/products/kaisar-onenode/kaisar-checker/how-to-purchase-checker-nodes/step-2-choose-the-network.md).

# Step 2 - Choose the Network

Connect your Metamask wallet and select the appropriate blockchain network (Ethereum Mainnet, Arbitrum, Base, Optimism, or PEAQ Mainnet).

<figure><img src="/files/doJkjCCC8R0wvrVhVymS" alt=""><figcaption></figcaption></figure>