Base Sepolia & Arbitrum Sepolia Faucet Guide: How to Claim Free L2 Gas Tokens
Ethereum Layer 2 (L2) networks like Base and Arbitrum process transactions faster and significantly cheaper than Ethereum Mainnet. When testing decentralized applications (dApps), swapping tokens, or qualifying for retroactive testnet airdrops on L2s, you need testnet gas tokens on Base Sepolia and Arbitrum Sepolia.
This guide covers network configuration, top L2 faucets, and how to acquire free testnet ETH directly on both Layer 2 networks.
⚙️ How to Add Base Sepolia & Arbitrum Sepolia to MetaMask
Before requesting tokens, configure the network RPC details in your Web3 wallet (MetaMask, Rabby, or Coinbase Wallet):
Base Sepolia Network Details:
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Network Name: Base Sepolia
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RPC URL:
[https://sepolia.base.org] -
Chain ID:
84532 -
Currency Symbol: ETH
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Block Explorer:
[https://sepolia.basescan.org]
Arbitrum Sepolia Network Details:
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Network Name: Arbitrum Sepolia
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RPC URL:
[https://sepolia-rollup.arbitrum.io/rpc] -
Chain ID:
421614 -
Currency Symbol: ETH
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Block Explorer:
[https://sepolia.arbiscan.io]
🚰 Top Base Sepolia ETH Faucets
1. Coinbase Developer Platform Faucet
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Direct Link: coinbase.com/developer-platform/products/faucet
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Daily Allowance: 0.1+ Base Sepolia ETH per day
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Requirements: Log in with a Coinbase account or connect a developer wallet.
2. Alchemy Base Sepolia Faucet
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Direct Link: alchemy.com/faucets/base-sepolia
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Daily Allowance: 0.1 ETH per 24 hours
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Requirements: Free Alchemy account setup + small Mainnet balance on Ethereum to prevent spam.
3. Chainlink Base Sepolia Faucet
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Direct Link: faucets.chain.link/base-sepolia
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Daily Allowance: 0.5 ETH + 25 Testnet LINK
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Requirements: Connect your Web3 wallet.
🚰 Top Arbitrum Sepolia ETH Faucets
1. Chainlink Arbitrum Sepolia Faucet
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Direct Link: faucets.chain.link/arbitrum-sepolia
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Daily Allowance: 0.5 ETH + 25 Testnet LINK
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Requirements: Web3 wallet connection.
2. QuickNode Multi-Chain Faucet
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Direct Link: faucet.quicknode.com/arbitrum/sepolia
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Daily Allowance: 0.05 – 0.1 ETH
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Requirements: Web3 wallet connection + anti-sybil wallet verification.
3. GetBlock Arbitrum Faucet
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Direct Link: getblock.io/faucet/arbitrum-sepolia
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Daily Allowance: Drips every 24 hours
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Requirements: Free GetBlock account sign-up.
🌉 Alternative Method: Bridge Ethereum Sepolia ETH to L2s
If L2-specific faucets are dry or rate-limited, you can claim Ethereum Sepolia ETH first (via sepoliafaucet.com) and bridge it directly to Layer 2:
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Bridge to Base Sepolia: Visit the official Base Bridge interface (
bridge.base.org), connect your wallet, select Sepolia Testnet, and bridge your Sepolia ETH to Base Sepolia. -
Bridge to Arbitrum Sepolia: Visit the official Arbitrum Bridge interface (
bridge.arbitrum.io), select the Sepolia network pair, and send ETH from Ethereum Sepolia to Arbitrum Sepolia.
💡 Best Practices for Testnet L2 Farming
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Use Official Bridges: Interacting with official cross-chain bridges between Ethereum Sepolia and Layer 2 testnets adds valuable on-chain transaction history.
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Maintain Minimum Wallet Balance: Keep at least 0.001 ETH on Ethereum Mainnet; most top-tier Layer 2 faucets enforce this check to block automated bot requests.
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Collect Daily Drips: Collect small amounts daily across multiple L2 testnets so you always have sufficient gas fees when new testnet dApps launch.
⚠️ Security Warning: Faucet tokens carry $0 real monetary value. Never enter your seed phrase, private keys, or send real crypto funds to acquire testnet ETH.