> For the complete documentation index, see [llms.txt](https://roswells-ai.gitbook.io/roswell.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://roswells-ai.gitbook.io/roswell.ai/roswell.ai-sale-details/participate-in-sale.md).

# Participate in Sale

**Instructions** 

* Make sure that you are linked to the Arbitrum network and that your wallet is connected to Roswell.ai by using the upper right corner of the screen.
* If you choose "Approve" from the drop-down menu and then confirm the action in your wallet, you will be given authorization to take part in the presale.
* You may participate in the presale by entering the amount of ETH you want to contribute, clicking the "Contribute" button, and then confirming the transaction in your wallet.
* You have now successfully contributed your ETH, and you are ready to go on.

*We will use Arbitrum network for the contribution instead of the ETH network you will need to bridge your ETH in order to contribute*

*(You are welcome to send a message to our telegram with any inquiries that you might have, and we will do our best to respond)*