Estimate gas
Learn how to estimate gas costs on Arbitrum using eth_estimateGas, NodeInterface.gasEstimateComponents(), and the Arbitrum SDK. Covers the two-component fee model with L1 data costs and L2 execution costs.
Chains and testnets
Overview of Arbitrum's public chains including Arbitrum One (Rollup), Arbitrum Nova (AnyTrust), and available testnets. Compare chain features, technology stacks, and use cases for each network.
Bridging
7 items
Arbitrum vs Ethereum
5 items
Oracles
Overview of blockchain oracles on Arbitrum — external data providers that supply offchain data to smart contracts. Learn how oracles work, their trust models, and available providers on Arbitrum.
Precompiles
2 items
NodeInterface
2 items
Reference
8 items