# Frax API FAQ

> Frequently asked questions about the Frax API

> For the complete documentation index, see [llms.txt](/docs/llms.txt).

## What is Frax?
Fraxtal (Frax Chain) is an EVM-equivalent Layer-2 built on Optimism’s OP Stack that uses FRAX as gas and rewards onchain activity via Flox/FXTL to scale the Frax ecosystem.

## How do I get started with Frax?
Check out our [Frax API Quickstart guide](/docs/reference/frax-api-quickstart) to get started building on Frax.

## What is the Frax API?
The Frax API lets you interface with the Frax mainnet. With this API, you can execute transactions, query onchain data, and interact with the Frax network using the JSON-RPC standard.

## Is Frax EVM compatible?
Yes, Frax is EVM compatible.

## What API does Frax use?
Frax uses the JSON-RPC API standard. This API is essential for any blockchain interaction on the Frax network, allowing you to read block/transaction data, query chain information, execute smart contracts, and store data onchain.

## What methods are supported on Frax?
Fraxtal supports standard Ethereum JSON-RPC methods. Some chain-specific methods may vary. Please check the [Fraxtal API Endpoints](/docs/chains#fraxtal-apis) for a complete list.

## What is a Frax API key?
When accessing the Frax network via a node provider like Alchemy, you use an API key to send transactions and retrieve data from the network. For the best development experience, we recommend that you [sign up for a free API key](https://dashboard.alchemy.com/signup).

## Which libraries support Frax?
Common Ethereum libraries like [ethers.js](https://docs.ethers.org/v5/) should be compatible with Frax, given its EVM nature.

## My question isn’t here, where can I get help?
If you have any questions or feedback, contact us at support@alchemy.com or open a ticket in the Alchemy Dashboard.