Infura provides a robust API that allows developers to interact with Ethereum and its Layer 2 solutions, including Arbitrum, without needing to run their own nodes.
This can significantly reduce the complexity and resource demands associated with blockchain development.
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Arbitrum is a Layer 2 scaling solution for Ethereum that uses optimistic rollups, which means it processes transactions off-chain while posting minimal data back to the Ethereum mainnet.
This approach enhances throughput and reduces transaction costs.
The JSON-RPC API used by Arbitrum is largely the same as Ethereum's, which means developers familiar with Ethereum can transition to building on Arbitrum with minimal adjustments to their existing code.
Developers can use Infura’s endpoints directly in their development environments without setting up dedicated infrastructure, which streamlines the process of building and deploying dApps on Arbitrum.
Arbitrum has multiple networks, including Arbitrum One (the mainnet) and Arbitrum Nova (optimized for gaming and social applications).
Each network has its own RPC endpoints that developers can access via Infura.
The Arbitrum Truffle Box provides a pre-configured environment for developers, making it easier to compile, deploy, and test Solidity contracts on Arbitrum using Infura’s infrastructure.
Infura support for Arbitrum includes full compatibility with popular development frameworks like Hardhat and Truffle, allowing developers to use existing tools and workflows.
Unlike the Ethereum mainnet, which has a limited throughput, Arbitrum can handle thousands of transactions per second, making it a more efficient choice for applications requiring high scalability.
Arbitrum's optimistic rollups assume transactions are valid by default, which means that only disputes are checked on-chain, resulting in faster confirmations compared to traditional Layer 1 transactions.
Infura’s support for WebSocket connections is limited for Arbitrum, meaning real-time updates (like event listening) may need to be handled differently than on Ethereum’s mainnet.
Developers can access Arbitrum's testnet via the Rinkeby network, which allows for testing without incurring costs associated with mainnet deployments, enabling experimentation and debugging.
The Infura dashboard allows users to enable Arbitrum as an add-on, providing a simple interface for managing multiple blockchain networks and their respective RPC endpoints.
Arbitrum’s design allows for seamless integration with existing Ethereum wallets, including MetaMask, ensuring users can easily interact with dApps built on the Layer 2 solution.
Arbitrum's architecture allows for more complex smart contracts with lower gas fees, making it an attractive option for developers looking to build decentralized finance (DeFi) applications.
The Ethereum community widely supports Arbitrum, ensuring ongoing development and improvements as part of the broader Ethereum ecosystem.
By using Infura with Arbitrum, developers benefit from automatic scaling, meaning they can handle fluctuating user demand without having to manage backend infrastructure themselves.
Security on Arbitrum is bolstered by its connection to Ethereum, as it inherits Ethereum's security model while enabling faster transaction processing.
As of early 2025, there are over 400 dApps built on Arbitrum, showcasing its growing popularity and the effectiveness of using Infura for development.
The Arbitrum network has been designed to facilitate interoperability with other Layer 2 solutions, potentially allowing cross-chain interactions in the future.
Developers building on Arbitrum can utilize Infura's extensive documentation and community resources for troubleshooting, best practices, and optimization tips to enhance their dApp performance.