You can connect a wallet to a decentralized exchange (DEX) without entering or sharing your seed phrase. Open the DEX using its trusted official link, choose Connect, select your wallet or WalletConnect, then approve the connection in your wallet app. Treat that connection separately from any later token approval or swap signature: review each prompt before you approve it.
Connect your wallet without giving the DEX your seed phrase
- Open the DEX’s official website. Use a trusted link and check the domain carefully. A lookalike page can imitate a real exchange.
- Select the DEX’s Connect control. Choose your installed wallet if it appears, or choose WalletConnect if the DEX and wallet support it. On mobile, follow the DEX’s instructions; you may be asked to open your wallet app or use its in-app dapp browser.
- Check the wallet’s connection prompt. Confirm that the site and requested account are the ones you expect, then approve the connection in the wallet app.
- Review later prompts individually. A swap may involve a token approval followed by a separate transaction signature. Check each wallet prompt before signing.
These are common steps, not a promise that every DEX uses the same labels or screens. For example, Uniswap’s connection instructions describe choosing Connect, selecting a wallet, using WalletConnect when needed, and approving the request in the wallet. They also cover mobile WalletConnect and in-app browser options.
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What a connection does—and what it does not do
A dapp connection allows the site to see information such as your wallet balance and to suggest transactions. MetaMask explains that the dapp cannot move assets merely because you connected; moving assets requires you to sign transactions it proposes. MetaMask’s explanation of dapp connections distinguishes connecting from signing.
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A token approval is a separate smart-contract permission. It can allow a spender contract to move the approved token up to the authorized amount. A DEX may request this before a swap; Uniswap describes approval as permission for the protocol to swap the token you approved. Uniswap explains approval transactions.
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- Connection: lets the dapp interact with your wallet interface and view permitted wallet information.
- Token approval: grants a specified spender permission over a particular token, potentially up to a specified amount.
- Swap or other transaction: requires a separate signature authorizing that transaction.
When an approval prompt appears, inspect the token, spender, and amount. If the wallet and DEX offer an amount control, approving only what you need can reduce exposure compared with an unnecessary unlimited allowance. Do not assume a connection prompt alone gives the DEX unrestricted control of all your tokens.
Keep your Secret Recovery Phrase private
Your seed phrase—also called a Secret Recovery Phrase (SRP)—and your private keys are not needed to connect a wallet to a DEX. Never enter them on a DEX page or give them to a person claiming to be support. MetaMask’s safety guidance states: “We will never ask you to provide your SRP.” It identifies initial wallet setup confirmation and restoring a wallet on a new or fresh installation, or resetting access, as limited situations where you may legitimately enter it. A routine DEX connection is not one of them. Read MetaMask’s SRP safety guidance.
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Check every prompt before you sign
Pause if a page or person asks for your recovery phrase, or if a wallet request is unexpected or unclear. Before approving a connection, approval, or transaction, check the site domain and requested account. For a token approval or transaction, inspect the network, token, spender, amount, and transaction details shown by your wallet.
Some wallet interfaces can display requested permissions, decoded transaction data, or warnings about unverified or potentially malicious contracts. Uniswap describes such warning features for its Wallet and Extension, but a warning—or the absence of one—is not a guarantee that an interaction is safe. See Uniswap’s description of its wallet security features.
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Disconnecting is not the same as revoking an approval
Disconnecting a dapp removes its visible wallet connection, but it does not revoke token approvals you previously granted. MetaMask distinguishes dapp connections from token allowances. Its connection guidance explains the distinction. If you want to end a token permission, look for an approval-management or revoke-allowance feature in a trusted wallet or service and carefully verify the token and spender; simply disconnecting will not do it.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Optional: use a hardware wallet for signing
A hardware wallet can keep signing keys isolated from an internet-connected computer or phone, requiring the device to authorize transactions. MetaMask recommends considering one for large holdings. It is optional for connecting to a DEX, and it cannot protect you if you approve a malicious transaction on the device. MetaMask’s safety guidance discusses this option.
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Permit2 signatures still deserve careful review
Some DEX flows use Permit2, a system in which a signature can specify a token, amount, spender, and deadline. MetaMask reported that more than 3.1 million Ethereum mainnet addresses had authorized Permit2 by 2025 in an article published July 10, 2026. That is a vendor-published figure, not an independently verified adoption estimate. The practical point is to read the signature details presented by your wallet rather than assuming a signature is harmless because it is not a conventional transaction. MetaMask’s Permit2 overview.
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