跳至內容

什麼是測試網?

測試網是一個對應主網(正式環境)的區塊鏈網路,讓開發者能在不花真錢的情況下部署、測試和最佳化智慧合約。像 Ethereum 和 Polygon 這樣的主網鏈會以真實代幣(等同真實金錢)收取 gas 費用。測試網則以免費的測試代幣取代這些費用。 測試網水龍頭會為開發者和使用者發放這些代幣。可以從 Ethereum SepoliaArbitrumBase 開始。
faucet

如何使用 Alchemy 水龍頭

  • Select faucet icon

    選擇你的水龍頭

    選擇你需要代幣的測試網。我們支援 Ethereum、Arbitrum、Base、Robinhood 及其他多種鏈。

  • Wallet icon

    新增你的錢包地址

    要申請資金,請輸入你的錢包地址並點擊「Send」。你的錢包必須有效、活躍,並具備良好聲譽才符合資格。

  • 24/7 支援圖示

    每 24 小時可領取一次資金

    申請後,測試網代幣會存入你的錢包供測試使用。24 小時後可再次申請更多資金。

常見問題

水龍頭相關問題

  • A testnet faucet provides developers with free test tokens for deploying, testing, and optimizing smart contracts on test blockchain networks such as Sepolia and Amoy. Smart contracts on public (mainnet) blockchains like Ethereum and Polygon require gas fees to run, and testnets mirror that production environment but replace the real tokens with test tokens, minimizing development costs associated and exploit risks. Testnet faucets give developers access to those test tokens. Most faucets require social authentication (e.g. a post on X or a login confirming you are a real human) or place you in a queue to wait for a testnet token through the faucet. However, the Alchemy faucet is free, fast, and does not require authentication.
  • To request funds from one of Alchemy's faucets, simply enter your wallet address for that network and hit the send button. To prevent faucet abuse, we've set some eligibility requirements that wallets must meet in order to receive faucet tokens. You can request testnet tokens every 24 hours without authentication.
  • Testnet tokens are a test currency that allows you to test your application before going live in production on mainnet. Testnet tokens can be used in place of mainnet tokens on testnet networks.
  • The time it takes for you to receive your test tokens may vary. This could be because the network may be congested at that time, or the amount of gas we have set for these transactions may be a little low compared to other transactions that miners may choose to validate instead. Keep an eye on your wallet. Your faucet transaction will land soon enough.
  • To prevent abuse and ensure a reliable faucet experience for all users, we apply a daily limit per address. This limit resets every 24 hours.
  • To keep the faucet fair and accessible, your wallet must meet a few requirements before you can successfully claim testnet tokens. You need at least 0.001 ETH on Ethereum Mainnet for EVM-based testnets, or an equivalent minimum balance on the corresponding chain mainnet for non-EVM networks. You need sufficient activity on Ethereum Mainnet for EVM-based testnets, or on the corresponding chain mainnet for non-EVM networks, to qualify. This means your wallet must have performed enough real transactions on the relevant mainnet. You need to have a low enough existing testnet balance since wallets with a significant amount of testnet tokens are not eligible for additional claims.
Background gradient

Building on testnet?

You'll need an RPC endpoint to deploy and test.