# Settlus API FAQ

> Frequently asked questions about the Settlus API

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

## What is Settlus?
Settlus is an OP Stack–based Ethereum Layer-2 for the creator economy, offering transparent settlement, programmable payouts, and on-chain royalty tools.

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

## What is the Settlus API?
The Settlus API lets you interact with the Settlus mainnet. You can execute transactions, query onchain data, and interact with the Settlus network using a JSON-RPC standard.

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

## What API does Settlus use?
Settlus uses the JSON-RPC API standard. This API handles all blockchain interactions on the Settlus network, letting you read block/transaction data, query chain information, execute smart contracts, and store data onchain.

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

## What is a Settlus API key?
When accessing the Settlus 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 you [sign up for a free API key](https://dashboard.alchemy.com/signup).

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