SDKs & APIs

SDKs and API references for building on Base — JSON-RPC, Flashblocks, and Debug APIs.

Everything you need to call Base programmatically, in one place.

API reference

API overview

Endpoints, authentication, and error codes.

Ethereum JSON-RPC

The full standard JSON-RPC surface.

Flashblocks

Sub-second confirmations and streaming.

Debug

Transaction and block tracing.