Cross-chain · Solana → Base

Swap USDT from Solana to ETH on Base

Swap USDT from Solana to ETH on Base. Tether's SPL mint leaves Solana, and native ETH is what can arrive to pay gas on Base. You do not receive the WETH predeploy.

The mint is Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB. Phantom and Solscan handle it with no ERC-20 approval. ETH is 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE on chain id 8453. Basescan shows the native row. WETH is 0x4200000000000000000000000000000000000006. Mainnet ETH is chain id 1, about 12 second blocks, Etherscan. This route funds the L2 fee coin only.

Diagram for Swap USDT from Solana to ETH on Base
USDT leaves Solana. ETH is what can arrive on Base.

Refill Base, do not assume you wrapped ether

The sentinel is native ETH. A contract that calls the predeploy will not accept it until you wrap, and wrapping costs ETH. If gas was the error, this page matches. If the ABI names 0x4200000000000000000000000000000000000006, it does not. Mainnet, chain id 1, will not spend this balance. WBTC is not involved and is not native bitcoin.

SOL first, then the L2 ETH you are trying to buy

Tether's mint does not pay Phantom. Keep native SOL. There is no allowance to revoke. MetaMask cannot show the debit. Base is where the ETH row should appear, on chain id 8453. That row is the budget for the transactions you came to send. Size the minimum with those transactions in mind.

A mainnet block interval is not the bridge

About 12 seconds describes chain id 1. It does not describe when Basescan credits you. Do not resend Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB because an Ethereum-selected wallet shows zero. Switch to 8453. Watch the destination address. The bridge wait is not a number this page will invent.

Stay in a dollar if fees were not the shortage

USDT to USDC on Base keeps Circle, with the warning that native USDC is not USDbC. USDT to WETH buys the predeploy. This page buys ETH and its price. Take it when the minimum still covers the gas you need. Otherwise you sold a stablecoin for a fee coin you will not use.

Legal

Risk disclosure

XAUConnect is a non-custodial swap aggregator. Digital assets are volatile and may lose value rapidly. Content on this page is educational and not investment advice. Verify every contract address on the official block explorer before approving a transaction.

Frequently asked questions

What is the best way to swap USDT from Solana to ETH on Base?

The mint is Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB. Phantom and Solscan handle it with no ERC-20 approval.

Is the Base arrival native ETH or the WETH predeploy?

Native ETH, quoted as 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE on chain id 8453. WETH is 0x4200000000000000000000000000000000000006 and will not be credited here. Tether's mint left Solana. Check the ETH line on Basescan. If the app wants the predeploy, this route is wrong. A block interval is not a delivery time for the bridge.

Can this ETH pay Ethereum mainnet fees?

No. It arrives on Base, an Ethereum L2. Mainnet is chain id 1, about 12 second blocks, explorer Etherscan. The fee coins do not merge. SOL paid the Phantom side. There is no ERC-20 approval on Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB. Keep SOL so the mint can leave. Switch the wallet to the destination chain before you judge the balance.

When should I avoid buying Base ETH?

When you needed USDC, WETH, or mainnet gas. This page is for Base fees. Read the minimum ETH and skip the quote if that floor will not cover the L2 transactions you already have waiting on chain id 8453. Do not send a second time while the first transfer is still open.

Live execution

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Open the swap page with this cross-chain route pre-selected, then connect your wallet on the source chain to quote and execute. You keep the keys.

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