Arbitrum

Arbitrum is an Ethereum scaling solution that provides high throughput and low-cost smart contract execution. Arbitrum's design allows it to be fully compatible with Ethereum. Developers will find that building with Arbitrum is nearly identical to building on Ethereum.

Arbitrum is compatible with Ethereum's JSON-RPC API implementation, which allows using tools such as Infura, Hardhat, and MetaMask.

See also

• View the official Arbitrum docs for more information about building on the Arbitrum blockchain.
• View the differences between developing on Ethereum versus Arbitrum.

Select one of the following options to get started with the Arbitrum network:

Quickstart

Learn how to quickly connect to Arbitrum and make calls to the network.

JSON-RPC APIs

View the APIs available for communicating with the Arbitrum network.

Create an API key

Learn how to create an API key and secure and share it with your team.