If you're building on blockchain, you need a safe way to test before going live. A USDC faucet gives you free testnet USDC — no real money required. This guide covers what a USDC faucet is, whichIf you're building on blockchain, you need a safe way to test before going live. A USDC faucet gives you free testnet USDC — no real money required. This guide covers what a USDC faucet is, which
USDC, or USD Coin, is a stablecoin pegged 1:1 to the US dollar and issued by Circle.
It is one of the most widely used stablecoins in the market, with a multi-billion dollar market cap, according to CoinMarketCap.
A testnet is a copy of a real blockchain used purely for testing — no real funds are at risk.
A USDC faucet is an online tool that sends free testnet USDC to your wallet address so you can simulate real transactions, test smart contracts, or debug dApps without spending anything.
Testnet tokens play a critical role in test network environments for two primary use cases: covering gas fees with native tokens and validating smart contract functionality with stablecoins like USDC.
Testnet USDC has no monetary value and cannot be transferred to mainnet or exchanged for real assets.
Circle's public faucet is permissionless, requires no account, and provides free access to testnet USDC and EURC on all supported blockchains.
Developers can request 20 USDC every 2 hours per address per chain, making it the most reliable starting point for anyone needing a Circle USDC faucet.
According to Circle's official documentation, this faucet supports every blockchain where USDC and EURC are natively available.
Base is Coinbase's Layer 2 network built on Ethereum.
The Base Sepolia USDC faucet is accessible through Circle's public faucet or via the Coinbase Developer Platform (CDP), which also supports EURC and cbBTC on Base Sepolia.
LearnWeb3 also offers a USDC Base Sepolia faucet requiring a GitHub account login to prevent bot abuse, with tokens typically delivered within seconds.
Polygon Amoy USDC Faucet — Available via the official Polygon faucet; use alongside test MATIC for gas fees.
Holesky USDC Faucet — Accessible through Circle's developer console faucet for Ethereum staking simulations.
Linea USDC Faucet — Available through Circle's supported chains; Linea is ConsenSys's ZK rollup testnet.
Hyperliquid Testnet Faucet USDC — Requires a mainnet deposit with the same address first; then claim 1,000 mock USDC from Hyperliquid's testnet drip.
Monad USDC Faucet — Monad is an emerging EVM-compatible chain currently in testnet phase; check Circle's official docs for the latest supported networks.
The biggest mistake developers make is treating faucets as unlimited — they are not.
Circle's faucet allows 20 USDC every 2 hours, per address, per blockchain. Plan your testing schedule around these windows to avoid interruptions.
Always claim ETH for gas at the same time as your USDC, since every on-chain transaction requires native tokens to pay fees regardless of which stablecoin you're testing.
Stick to official sources when choosing a free USDC faucet — phishing sites designed to look like real faucets are a known risk in the Web3 space, and they will never ask for your private key or seed phrase.
When working across multiple chains, use Circle's Cross-Chain Transfer Protocol (CCTP) to move USDC from Ethereum Sepolia to any other supported testnet instead of using a separate faucet for every network.