# Ethereum Sepolia RPC and network details

Source: https://www.alchemy.com/rpc/ethereum-sepolia

Sepolia is Ethereum’s main public testnet for smart contract development and infrastructure testing. Sepolia replicates mainnet behavior with low-stakes test ETH and consistent uptime for code iteration and production-hardening.

## Network details

- Network: Sepolia
- Chain ID: 11155111
- Environment: Testnet
- Category: L1
- Native token: ETH
- Gas token: ETH
- Block time: 12-15s

## Endpoints

- Alchemy RPC: https://eth-sepolia.g.alchemy.com/v2/API_KEY
- Alchemy WebSocket: wss://eth-sepolia.g.alchemy.com/v2/API_KEY

Replace API_KEY with a key from https://dashboard.alchemy.com/signup.

## Alchemy product support

Supported on Ethereum Sepolia: RPC API, Transaction receipts API, Block Timestamp API, User OP Simulation API, Debug API, Trace API, Bundler API, Token API, NFT API, Websockets, Gas Manager, Webhooks, Transfers API.

Not currently supported: Prices API, gRPC.

## Build on Alchemy

Alchemy offers performant Sepolia RPC endpoints that simplify your testing on Ethereum. With a suite of data APIs and devtools and data APIs, you can make sure your code is production-ready before shipping to mainnet.

## Available networks

- Ethereum Mainnet: https://www.alchemy.com/rpc/ethereum
- Ethereum Mainnet Beacon: https://www.alchemy.com/rpc/ethereum-beacon
- Ethereum Hoodi (testnet): https://www.alchemy.com/rpc/ethereum-hoodi
- Ethereum Hoodi Beacon (testnet): https://www.alchemy.com/rpc/ethereum-hoodi-beacon
- Ethereum Sepolia Beacon (testnet): https://www.alchemy.com/rpc/ethereum-sepolia-beacon

## Links

- Alchemy docs: https://docs.alchemy.com/reference/ethereum-api-quickstart
- Official docs: https://ethereum.org/en/developers/docs/
- Website: https://ethereum.org/
- GitHub: https://github.com/ethereum
- Block explorer: https://sepolia.etherscan.io
- Bridge: https://www.alchemy.com/list-of/web3-bridges-on-ethereum
- Faucet: https://www.alchemy.com/faucets/ethereum-sepolia