Base
Base is an optimistic layer 2 rollup chain built by Coinbase on the MIT-licensed OP Stack, in collaboration with Optimism.
The Base network provides seamless Coinbase integrations, easy fiat on-ramps, and access to more than 100 million users and $100 billion in assets in the Coinbase ecosystem.
See also
- The official Base documentation for more information.
- The official Optimism Ethereum JSON-RPC API documentation (Bedrock release) for custom Base methods.
Select an option below to get started with the Base network.
Quickstart
Learn how to quickly connect and make calls to the Base network.
JSON-RPC APIs
View the APIs available for communicating with the Base network.
Create an API key
Learn how to create and secure an API key.
Endpoints
Connect
| Network | Transport type | URL |
|---|---|---|
| Mainnet | JSON-RPC over HTTPS | https://base-mainnet.infura.io/v3/<YOUR-API-KEY> Copied |
| Mainnet | JSON-RPC over WebSocket | wss://base-mainnet.infura.io/ws/v3/<YOUR-API-KEY> Copied |
| Testnet (Sepolia) | JSON-RPC over HTTPS | https://base-sepolia.infura.io/v3/<YOUR-API-KEY> Copied |
| Testnet (Sepolia) | JSON-RPC over WebSocket | wss://base-sepolia.infura.io/ws/v3/<YOUR-API-KEY> Copied |