# WorldMobileChain API FAQ

> Frequently asked questions about the WorldMobileChain API

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

## What is WorldMobileChain?
World Mobile Chain is an EVM-compatible Layer-3 built on Base for decentralized telecom (DePIN), where EarthNodes secure the network and process telco data to deliver fast, low-cost onchain services.

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

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

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

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

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

## What is a WorldMobileChain API key?
When accessing the World Mobile Chain 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 WorldMobileChain?
Common Ethereum libraries like [ethers.js](https://docs.ethers.org/v5/) should be compatible with WorldMobileChain, 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.