Buy and sell Sepolia ETH on an open market.
One transparent price, set on-chain. Buy Sepolia ETH with stablecoins or ETH from any major chain and receive it instantly, or sell your SETH into a first-come queue and get paid in real ETH on Base. Sellers climb price tiers as they sell more.
The market at a glance.
How much Sepolia ETH is available to buy, the depth of the sell queue, how much has sold so far, the current buy price, and the tier ladder of seller prices — the only moving numbers. Everything else is fixed, on-chain rules.
Live figures refresh about once a minute from on-chain activity; a dash means the market feed is momentarily unavailable.
Two sides, one market.
Buyers pay from the chain they already use and receive SETH instantly. Sellers deposit SETH into the vault and join a queue that pays out in real ETH.
First in, first paid.
Selling is a strict first-come, first-served queue. Every deposit is one order, ordered by the block it landed in — nobody jumps ahead, and orders never merge. As buyers buy, the front of the queue fills first.
One deposit, one order
Each SETH deposit is its own queue order, keyed to its on-chain event. Deposit again and you take a new spot at the back — earlier orders always sell out first.
Ordered on-chain
Position is set by block number, then log index — pure arrival order. The ordering is deterministic and replayable from the chain, so nobody can quietly cut the line.
Never sold out
A fallback reserve of 100,000 SETH backs the market. If the seller queue is ever empty, buys are filled straight from the reserve — so a buyer can always get Sepolia ETH.
Sell more, earn a bigger share.
Your sell price is a share of the buy price, set by your tier. Every 10,000 SETH you sell over your lifetime moves you up one rung — from Novice at 20% of the buy price to Apex at 100%. Tiers are tracked on-chain and never reset.
How sellers get paid.
You accrue what you're owed in USD at sale time; payouts convert that to ETH and settle on Base.
Once a day
Payouts run in a daily batch. Everything your orders filled that day is aggregated and paid in the next run.
Real ETH on Base
You’re paid in native ETH on Base — no wrapped tokens, no stablecoins to redeem. Your payout address receives the transfer directly.
10 SETH minimum
You need at least 10 SETH sold to be included in a payout. Below that, your balance keeps accruing until it crosses the threshold — nothing is lost.
Chainlink conversion
The USD you’re owed is converted to ETH at payout time using Chainlink’s ETH/USD feed, with staleness checks — so the rate is a public oracle, not our number.
Connect the SellPolia Telegram bot and it pings you the moment a payout is sent, with the on-chain transaction so you can verify it yourself.
Pay from the chain you already use.
Buy Sepolia ETH with the assets you already hold. Your payment is converted to USD on-chain and you receive SETH at the current buy price.
Supported chains
Pay from Ethereum, Base, Optimism, Arbitrum, or BNB Chain — whichever network your funds already live on.
Stablecoins or ETH
Pay with USDC, USDT, or DAI on any supported chain, or pay with the native gas token — no bridging required to get started.
Chainlink-priced ETH
When you pay with native ETH instead of a stablecoin, Chainlink’s price feed sets the ETH/USD rate at the moment you pay — a transparent oracle, not a rate we pick.
Separate your payout address.
Keep the wallet you trade from apart from the wallet you get paid to.
Set a dedicated address to receive your ETH payouts — separate from your trading wallet — and change it whenever you want. It’s an on-chain setting where the latest change always wins, and it defaults to your own address until you set one. If a trading key is ever exposed, your earnings still land somewhere safe.
Questions, answered.
Do I need to have used RecyclETH to buy or sell here?+
How is my sell price decided?+
How and when do I get paid?+
What can I pay with as a buyer?+
What if I want to buy but nobody is selling?+
Can I change where my payouts go?+
Start buying or selling Sepolia ETH.
Deposit SETH to sell, or pay from any major chain to buy — no prior history required.