Choose an Integration Surface
SDKs & APIs Overview
Compare the Base Chain API, identity verification, and command-line tooling.
Migrated Documentation
Find wallet SDK and Wallet MCP documentation on Coinbase Developer Platform.
base-anvil CLI
Build and test Base-native contracts locally with Base’s Foundry toolchain.
Call the Chain
Base RPC Overview
Choose between standard block data and 200 ms Flashblock preconfirmations.
Ethereum JSON-RPC
Read chain state, estimate gas, send transactions, query logs, and subscribe to events.
Flashblocks API
Use preconfirmation-aware methods and streams for sub-second application feedback.
Debug API
Trace transactions and replay blocks when debugging contract execution.
Base Services Hub
Find RPC, data, security, and other service providers that support Base builders.