> For the complete documentation index, see [llms.txt](https://docs.chainrpc.io/chainrpc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.chainrpc.io/chainrpc/networks/arbitrum.md).

# Arbitrum

Arbitrum is an Ethereum scaling solution that provides high throughput and low-cost smart contract execution.

Arbitrum is EVM-compatible, and developers can connect via Arbitrum's node API. The Arbitrum node is compatible with Ethereum's JSON-RPC API implementation, which allows using tools such as Infura, Truffle, and MetaMask. For Ethereum JSON-RPC API usage examples, please see our [Ethereum documentation](broken://pages/jjagORiusiMspLbb2VSF).

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For more information on Arbitrum please see their [official documentation](https://developer.offchainlabs.com/docs/developer_quickstart).
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To use the Arbitrum blockchain, create a Web3 project and add the Arbitrum network add-on.