Published on March 3, 20232 min read
In this article we will explain what Sepolia is, Sepolia's network and RPC information, and how to get test Sepolia ETH tokens.
Sepolia was a proof-of-authority testnet created in October 2021 by Ethereum core developers and maintained ever since. After the Ropsten testnet reached a Terminal Total Difficulty (TTD) of 50000000000000000 the Sepolia and the Goerli testnets transitioned to a proof-of-stake consensus mechanism to mimic the Ethereum mainnet.
Testnets are blockchains designed to mimic the operating environment of a ‘mainnet’ but exist on a separate ledger. These testnets help developers test their applications and smart contracts in a risk-free way before deploying their products to Ethereum’s mainnet environment.
Sepolia was designed to simulate harsh network conditions, and has shorter block times, which enable faster transaction confirmation times and feedback for developers.
Compared to other testnets like Goerli, Sepolia's total number of testnet tokens is uncapped, which means it is less likely that developers using Sepolia will face testnet token scarcity like Goerli.
Sepolia Network Information
If you are adding the Sepolia blockchain to your wallet, this is the network information to include:
Network Name - Sepolia Test Netwok
RPC URL - https://eth-sepolia.g.alchemy.com/v2/[YOUR-API-KEY]
Chain ID - 11155111
Currency Symbol - SepoliaETH
Block Explorer URL - https://sepolia.etherscan.io/
Note: There is also a 1-click option to add Sepolia to your wallet in the Alchemy dashboard.
How to get Sepolia testnet ETH?
Sepolia ETH can be obtained from a Sepolia testnet faucet, that allows anyone to send a small amount of fake Sepolia ETH to their wallet. Sepolia ETH is the currency used to pay to complete transactions on the Sepolia testnet, similar to how ETH is used to pay for computation on the Ethereum’s mainnet which is also a Proof-of-Work chain before the merge.
Head to Alchemy's free Sepolia Faucet
Sign in to your Alchemy account
Enter your wallet address or ENS name
Click "Send Me ETH"
A popup will display ‘Transaction sent’ with the amount of Sepolia ETH deposited to your wallet.
Next, you can check your Ethereum wallet to confirm you received the SepoliaETH.
With your Sepolia ETH, you can now begin running smart contracts on the Sepolia testnet.
To view the date and time, the transaction fee, the gas burnt, and other transaction details, you can look up your transaction hash on the Sepolia Etherscan.
FAQs
Sepolia is a Proof-of-Stake (PoS) testnet. It was named after a neighborhood in Athens, Greece, where one of the Ethereum developers grew up. Currently, Sepolia is the recommended default testnet for smart contract development.
How to get sepolia testnet ETH for free? ›
You can request 0.1 Sepolia ETH every 24h with a free Alchemy account! What is a testnet Ethereum faucet? An Ethereum faucet is a developer tool to get testnet Ether (ETH) in order to test and troubleshoot your decentralized application or protocol before going live on Ethereum mainnet, where one must use real Ether.
Is Sepolia ETH real? ›
What is Sepolia ETH? Test Ether is a token used on the test network. It performs the same set of functions 'real' ETH is designed for, however, it has no real-world value or price.
How to mine sepolia ETH? ›
Sepolia PoW Faucet
Enter your ETH address and complete the reCAPTCHA, then click Start Mining. You will accumulate mining rewards in the form of Sepolia ETH (SepETH). Once done, click Stop Mining & Claim Rewards. Do note that there is a minimum claim reward of 0.05 Sepolia ETH before you can claim rewards.
How to get 100 sepolia ETH? ›
Visit Token Tool faucet: Go to Token Tool and select the "Ethereum Sepolia Faucet" option. 3. Complete profile: Connect your wallet to Token Tool and complete the steps to reach 100% profile completion.
Is Sepolia ETH worth anything? ›
On Ethereum's testnets, known as Goerli and Sepolia, real-world ETH is simulated through testnet ETH, which you may see referred to as 'Goerli ETH' or'sepolia ETH'. Crucially, testnet variants of ETH do not have any real-world value.
Can I cash out Sepolia ETH? ›
So, once you deposit some amount (say x Sepolia-ETH) into the contract from a particular wallet (say 0x717ED4454b2E13d5BE7CE629957A89982065182d ), then you'll be able to withdraw any amount (i.e., <=x Sepolia-ETH) from the contract to any payable address using the same wallet (i.e., ...
How to farm sepolia? ›
How to Get Base Sepolia ETH from a Faucet
- Visit basefaucet.com. This Base Sepolia Faucet is managed by Alchemy, and provides web3 developers with a fast and reliable way to collect free Base Sepolia ETH tokens. ...
- Sign in to your Alchemy account. ...
- Connect MetaMask to the Base Sepolia Network. ...
- Request Sepolia ETH on Base.
It's important to remember that commercial operations are impossible with test Ether: it's meaningless to wonder how to sell Sepolia ETH, as it has no value.
Is Sepolia real money? ›
A Sepolia testnet Ethereum token is the gas fee token for the Sepolia testnet. Testnet tokens do not have real monetary value (these tokens are not like the “real” Ethereum), but they play an important role in covering gas costs.
Testnet coins are distinct from actual coins, and testnet coins do not have any monetary value. This allows application developers or testers to experiment without having to use valuable coins.
Can Sepolia ETH be swapped? ›
THE ETH TO SEPOLIA BRIDGE ENABLES THE SEAMLESS TRANSFER OF ASSETS BETWEEN THE ETHEREUM MAINNET AND THE SEPOLIA TESTNET. USERS CAN EASILY SWAP TOKENS FOR NATIVE SEPOLIA ETH AND BRIDGE THEM SECURELY USING LAYERZERO'S OFT TECHNOLOGY.
How to earn sepolia? ›
Sepolia Testnet ETH can be claimed from the following faucets: Alchemy – a well known faucet for various testnets. QuickNode – a convenient multichain faucet. LINK test tokens (ERC20) on the Sepolia network can be obtained from ChainLink.
How to get free testnet ETH? ›
To request funds, simply sign into your Alchemy account, enter your wallet address, and hit “Send Me ETH” or “Send Me MATIC”. You'll see the funds in your wallet that you can use to test. You can request funds every 24 hours.
How to get blast sepolia ETH? ›
You can get Sepolia ETH for the Blast network from the Quicknode Blast faucet. Alternatively, obtain Sepolia ETH from the Infura faucet and bridge your funds to the Blast network.
What is the purpose of testnet? ›
Testnet is a blockchain network identical to the main network used for testing and experimenting with new features. These testnets allow developers to find potential network issues and errors and fix them before deploying them on the mainnet.
Are testnet coins worth anything? ›
Are Testnet coins worth anything? The testnet is an alternative blockchain to be used for testing. Testnet coins are distinct from actual coins, and testnet coins do not have any monetary value. This allows application developers or testers to experiment without having to use valuable coins.
How much does Sepolia testnet charge? ›
Right now, trading DAI/WETH on Uniswap V3 (Sepolia Testnet) has a fee of 0.3%.
