A USDC faucet sends free testnet USDC, a test version of Circle's stablecoin with no financial value, to a wallet so developers can test payment and transfer flows. As of October 2026, Circle's public faucet sends 20 USDC every 2 hours per address and per blockchain with no account required, per the Circle Faucet. Coinbase's CDP Faucet sends 1 USDC per claim on Base Sepolia, Ethereum Sepolia and Solana Devnet, per the CDP Faucets docs.
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Testnet USDC is not backed by real US dollars, per Circle's USDC address page. This article covers where to get it on the four testnets developers ask about most, the token address on each, and the gas you still need to move it. All pages were fetched on October 13, 2026.
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Three faucets dispense testnet USDC directly: Circle's public faucet, the faucet inside Circle's Developer Console, and Coinbase's CDP Faucet. Circle's public faucet covers the most networks and needs no account. The other two need an account and suit teams that fund test wallets from code.

The Circle Faucet sends testnet USDC, EURC and cirBTC. Its network menu starts with Arc Testnet and includes Ethereum Sepolia, Base Sepolia, Solana Devnet, Arbitrum Sepolia, Avalanche Fuji, OP Sepolia, Polygon PoS Amoy and many more. Circle's FAQ says the limit is 20 USDC every 2 hours, per address and per blockchain, and that developers who need more can ask in Circle's Discord.
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Circle runs a second faucet inside its Developer Console. The public faucet FAQ says it also provides native testnet tokens such as ETH and POL alongside USDC and EURC, but it can only fund wallet addresses created with Circle Wallets. That makes it useful for teams already building on Circle's wallet APIs and irrelevant for anyone using MetaMask or Phantom.
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The CDP Faucets docs list USDC on Base Sepolia, Ethereum Sepolia and Solana Devnet at 1 USDC per claim and 10 claims per 24 hours. The same faucet dispenses the native gas token, which saves a second faucet visit. Requests run from the CDP Portal or the CDP SDK, per the CDP quickstart.
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Each testnet has its own USDC contract or mint, and wallets often hide tokens they do not recognize. Importing the token by its official address makes the faucet deposit show up. Always copy the address from Circle's documentation rather than from a block explorer search result.

The steps are the same everywhere: get the network's gas token first, then request USDC from a faucet, then import the USDC address in your wallet. Arc Testnet is the exception, because USDC itself pays for gas there, so a single faucet request covers both needs.
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Request USDC from the Circle Faucet or the CDP Faucet. You also need Sepolia ETH for gas; faucet options are compared in Best Sepolia Faucets 2026. Sepolia uses chain ID 11155111, per the eth-clients/sepolia repository.
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Base's own Get Funds page points developers to the Circle Faucet for test USDC on Base Sepolia. Gas is test ETH on chain ID 84532, per Base docs; see Base Sepolia faucets for ETH drips.
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Arc Testnet lists faucet.circle.com as its faucet, per the Arc network reference. Arc Testnet uses chain ID 5042002 and the RPC https://rpc.testnet.arc.io. USDC is Arc's native gas token, accounted with 18 decimals, while the USDC ERC-20 interface uses 6 decimals, per Arc's gas and fees docs. The same page sets a design-time base fee target of about $0.001 per ERC-20 transfer under normal load.
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Both the Circle Faucet and the CDP Faucet send devnet USDC to the mint 4zMMC9srt5Ri5X14GAgXhaHii3GnPAEERYPJgZJDncDU. You still need devnet SOL to pay fees, covered in Solana devnet faucet. Solana token balances live in token accounts, per Solana's token docs, so the wallet must hold or create a USDC token account.
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Most developers should start with Circle's public faucet because it needs no account and covers every testnet in this article. Teams that script test wallets or need USDC on a schedule should add the CDP Faucet. Circle Wallets users can rely on the Developer Console faucet for both gas and USDC.

Circle's Cross-Chain Transfer Protocol, CCTP, burns USDC on one chain and mints it on another, and it runs on testnets as well as mainnets. Circle's faucet FAQ recommends it for reaching testnets the faucet does not list. That keeps one faucet as the source for every chain you test.
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The Circle Faucet FAQ points to its CCTP quickstart for moving USDC from Ethereum Sepolia to a CCTP-supported target. Background on how the protocol works is in What Is CCTP?, and the bridged-versus-native distinction that matters on mainnet is covered in What Is USDC.e?
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USDC faucets are generous for unit tests and thin for anything that resembles production volume. Circle's public faucet also gives you USDC but, outside Arc, not the gas token you need to move it. Limits are set per address and per network, so heavy testing means waiting or using several addresses.

20 USDC every 2 hours per address and per blockchain, per the Circle Faucet FAQ.
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No. The public faucet requires no account, per Circle. The Developer Console faucet does.
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The wallet may not list the token yet. Import it with the address from Circle's address page.
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No. Circle says testnet USDC has no financial value, per its documentation.
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No. Arc uses USDC as its native gas token, per the Arc network reference.
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Faucet limits, token addresses and network settings were read from Circle, Coinbase Developer Platform, Arc and Base documentation on October 13, 2026. Nothing was claimed from a faucet or measured. Limits change; check the live pages.