A Base Sepolia faucet sends free test ETH to your wallet on Base Sepolia, the testnet for Coinbase's Base network, so you can pay gas while you deploy and test. As of October 2026, the Alchemy faucet drips 0.1 ETH every 24 hours to eligible wallets, per the Alchemy Base Sepolia faucet, and the Chainlink faucet lists a 0.5 ETH drip, per the Chainlink faucet page.
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Base Sepolia uses chain ID 84532 and the public RPC endpoint https://sepolia.base.org, per Base's Connect to Base docs. This page compares six faucets by drip size, cooldown and eligibility, then covers the network settings a wallet or script needs. Every faucet page and doc was opened on October 13, 2026.
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Each faucet here sends Base Sepolia funds directly, publishes its own drip or cooldown terms, and is run by a known infrastructure company or by Base's own ecosystem. Base's docs no longer keep a standalone faucet list, so the set was built from faucets that publish Base Sepolia terms on their own pages.
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The Base Get Funds page points testnet users to Base faucets and to the Circle faucet for test USDC. The ranking below favors faucets a new developer can use without a mainnet balance or paid account, and it notes where a faucet requires sign-in.
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Chainlink lists the largest single drip, and Alchemy the largest daily drip with no sign-in, though Alchemy requires mainnet history. QuickNode serves brand new wallets. The Superchain faucet and Coinbase's CDP faucet need an account but offer predictable limits for teams.

Faucets protect their balances with a mix of mainnet balance checks, sign-ins, captchas and per-address cooldowns. A wallet with real Ethereum mainnet history passes nearly all of them. A fresh development wallet passes only the faucets that skip the mainnet check.
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The Alchemy faucet sends 0.1 ETH once every 24 hours and needs no Alchemy account. Its eligibility FAQ asks for at least 0.001 ETH on Ethereum mainnet, enough real mainnet transactions and a low enough existing testnet balance. The daily limit applies per address and resets every 24 hours.
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The QuickNode faucet lets a new wallet claim once every 12 hours with no account, no X post and no mainnet balance. Sharing a post on X doubles the base drip, and paid QuickNode customers can reach four times the base amount. QuickNode shows the exact amount only after you enter an address.
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The Chainlink faucet lists Base Sepolia drips of 0.5 ETH and a separate 25 LINK drip for testing Chainlink services. You connect MetaMask, WalletConnect or Coinbase Wallet first. The page listed no cooldown on October 13, 2026.
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Optimism's Superchain Faucet lists 14 networks on one page, 13 Superchain Sepolia networks plus Ethereum Sepolia, including OP Sepolia, Base Sepolia, Unichain Sepolia and Ink Sepolia. Anyone who signs in can claim 0.01 test ETH every 24 hours, and verifying an onchain identity unlocks more. The page shows Gitcoin, World ID, EAS and Coinbase logos as verification options.
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Coinbase's CDP Faucet covers Base Sepolia, Ethereum Sepolia and Solana Devnet, per the CDP Faucets docs. On the EVM testnets it pays 0.0001 ETH per claim with 1,000 claims per 24 hours, and 1 USDC or 1 EURC per claim with 10 claims per 24 hours. Claims run from the CDP Portal or the CDP SDK.
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Choose by what your wallet can prove and how you work. Wallets with mainnet history should take the larger Alchemy or Chainlink drips. New wallets should start with QuickNode. Teams funding test accounts from code should use the CDP Faucet API rather than a browser faucet.

Base Sepolia uses chain ID 84532, ETH as its gas currency, a public RPC endpoint run by Base, a separate sequencer endpoint for sending transactions, and BaseScan as its block explorer. These five values are all a wallet, Foundry, Hardhat or viem config needs.

Base docs say to use the sequencer endpoint only to send transactions and the RPC endpoint for every other request, per Connect to Base. To confirm a node is Base Sepolia, call eth_chainId, which returns the chain ID as a hex string per the ethereum.org JSON-RPC reference:
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Base mainnet, for comparison, uses chain ID 8453 and https://mainnet.base.org, per the same Base network table. For explorer options beyond BaseScan, see Best Base block explorers.
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Base Sepolia faucets share the same weaknesses as every testnet faucet: rationing, eligibility rules that shut out new wallets, and terms that change without notice. Teams that depend on a steady supply of test ETH should plan for a fallback.

84532, per Base docs. Base mainnet is 8453.
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No. They are separate networks with separate balances; Ethereum Sepolia is chain ID 11155111, per the Sepolia repository. See Sepolia faucets.
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Yes. Circle's faucet sends 20 USDC every 2 hours per address and chain, per the Circle Faucet, and CDP sends 1 USDC per claim, per CDP docs.
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QuickNode's base drip has no mainnet balance requirement, per its faucet FAQ.
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On BaseScan for Base Sepolia, the explorer listed in Base docs.
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Every faucet page and doc was opened on October 13, 2026. Amounts, cooldowns and requirements are quoted from each faucet's own page; nothing was claimed or measured. Network settings come only from Base documentation.