Sepolia faucet
- The RPC Gateway faucet sends 0.2 Sepolia test ETH to one address every 24 hours.
- An address qualifies when it already holds at least 0.0001 ETH on Ethereum mainnet.
- Ethereum Sepolia has chain ID 11155111, and its test ETH has no market value.
- The faucet is free to use, requires no account, and runs no captcha.
- Each claim is broadcast immediately and is normally mined within one minute.
Claim from the Ethereum Sepolia faucet page, listed with every other network on the testnet faucets index. This document covers the rules behind that page: who qualifies, what the limits are, and how to read each response.
Which addresses qualify
The faucet checks one thing before it sends: the receiving address must hold at least 0.0001 ETH on Ethereum mainnet. That balance is read at the moment of the claim.
The check exists because it is cheap for a developer and expensive for a bot. A wallet that has ever been used already passes without any extra step, while an operator running thousands of addresses has to fund every one of them on mainnet first.
Mainnet activity is the only signal used. Contract deployments, transaction count, and token balances are left out of it.
Limits
| Rule | Value |
|---|---|
| Amount per claim | 0.2 SepoliaETH |
| Window | One claim per address every 24 hours |
| Eligibility | 0.0001 ETH on Ethereum mainnet |
| Account | None required |
Sharing the faucet unlocks one additional claim inside the same window, which the page offers after a successful claim.
Responses
A successful claim returns the transaction hash straight away.
{
"address": "0x742d35Cc6634C0532925a3b844Bc454e4438f44e",
"amount_eth": "0.2",
"tx_hash": "0x0e0d0841bb44b749aebc7caba18f2ede9b623917e8eba44fb451916a68742228",
"explorer_url": "https://sepolia.etherscan.io/tx/0x0e0d0841bb44b749aebc7caba18f2ede9b623917e8eba44fb451916a68742228"
}The status is 202, which means the transaction is broadcast rather than mined. Sepolia produces a
block about every 12 seconds, so a claim normally confirms within a minute. Follow the hash on
Sepolia Etherscan to watch it land.
A refused claim carries a machine-readable code and a sentence explaining it.
| Status | Code | Meaning |
|---|---|---|
400 | INVALID_ADDRESS | The address is malformed |
403 | INELIGIBLE_ADDRESS | The mainnet balance is below 0.0001 ETH |
429 | COOLDOWN_ACTIVE | This address claimed inside the last 24 hours |
503 | FAUCET_UNAVAILABLE | The faucet is not available right now; try again later |
A 429 also carries the seconds remaining, so a client can say exactly how long is left.
Using Sepolia through the Gateway
Sepolia is one of the 20 chain and network pairs the Gateway serves, so the API Key that carries
your mainnet traffic carries your test traffic too. Configure it the same way as any other network:
create a Gateway for Ethereum Sepolia, attach an Endpoint, and call eth_chainId to confirm the
network answers with 0xaa36a7.
curl '<ethereum_sepolia_access_point>' \
-H 'Authorization: Bearer <app_api_key>' \
-H 'Content-Type: application/json' \
--data '{"jsonrpc":"2.0","id":1,"method":"eth_chainId","params":[]}'See Ethereum for the complete chain guide, Supported networks for every host, and Authentication for API Key placement.