> For the complete documentation index, see [llms.txt](https://whitepaper.drivesafe.tech/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://whitepaper.drivesafe.tech/technology.md).

# Technology

**Tokens**

The cryptocurrencies involved in DriveSafe are known as $DriveS and $FUEL. 

Both tokens can be bought, sold, or swapped on exchanges. To transfer this token, you will need to have a compatible wallet such as [MetaMask](https://metamask.io/).

To send tokens from a wallet to an exchange, or from a wallet to another wallet, you will need to pay the transactions fees.

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**NFTs**

The DriveSafe cars use a technology called NFTs (or non-fungible tokens). 

An NFT is a unit of data stored on a blockchain that certifies a digital asset to be unique and therefore not interchangeable.