A3 Swap by A3 Lab
Non-custodial · On-chain · Base mainnet

A3 Swap — Simple Non-Custodial Asset Swaps

Connect your wallet, preview the route, understand the fees, and swap through transparent on-chain infrastructure.

A3 never asks for your seed phrase and does not custody your assets.
Interface preview · live on Base

Swap

You pay
You receive
0.0
On-chain transparency

Every swap, fully visible

A3 Swap is a thin, open interface on top of public infrastructure. Nothing is hidden — you can verify routes, fees, and contracts yourself.

Network
Base (Coinbase L2)
Chain ID 8453
Liquidity source
Uniswap V3
Direct on-chain pools
Platform fee
0%
No protocol surcharge
Supported wallets
MetaMask · Coinbase · Rabby · Brave
Any EIP-6963 wallet
Transaction visibility
BaseScan
Public block explorer
Router contract
0x2626…1e481
Uniswap V3 SwapRouter02
Last successful swaps

Live transaction feed will appear here once mainnet activity is wired up. In the meantime, every confirmed swap can be inspected directly on BaseScan.

Trust by design

What A3 never does

A3 Swap is a non-custodial interface. These guarantees are enforced by your wallet and the underlying smart contracts — not by us.

A3 never asks for your seed phrase
A3 does not custody your funds
A3 does not request withdrawal permissions
Every swap is confirmed in your own wallet
You see quote, route, fees and slippage before signing
You can reject any transaction at any time
How it works

Six steps from wallet to A3 Lab

No accounts. No custody. The whole flow lives in your wallet and on-chain.

01
Connect Wallet
MetaMask, Coinbase, Rabby, Brave.
02
Select Tokens
Pick the pair and amount.
03
Review Quote
See route, slippage and fees.
04
Confirm in Wallet
You sign. We never can.
05
Track Transaction
Inspect live on BaseScan.
06
Continue to A3 Lab
Unlock the full ecosystem.
Safety checklist

Before you sign, verify everything

Take 10 seconds to walk this list. It's the cheapest insurance in Web3.

Check token contract address
Compare with the official source — fakes copy logos and tickers.
Check the network
Make sure your wallet is on Base before signing.
Check slippage
Tighter is safer. Loose slippage invites sandwich attacks.
Check price impact
High impact means low liquidity — split the trade if needed.
Read the wallet confirmation
Approve only what you intend. Reject if anything looks off.
Beware of fake links
Bookmark the official A3 domain. Ignore DMs and pop-ups.
Never share your seed phrase
No one from A3 will ever ask. Anyone who does is a scammer.
Revoke unused approvals
Tools like revoke.cash help keep your wallet clean over time.
After your first swap

From a simple swap to the full A3 ecosystem

Once you've tried A3 Swap, register on A3 Lab to access everything our platform has to offer for active on-chain users.

Portfolio intelligence
Market signals
Automation tools
Product documentation
Dedicated support
Guided onboarding
FAQ

Honest answers to honest questions

Trust Center

Legal, risk and transparency

Everything we publish about how A3 operates, what risks you take, and how we handle data.

Risk Disclosure
What can go wrong, and how to think about it.
Read more
Privacy Policy
What data we collect — and what we never touch.
Read more
Terms of Service
The rules of using the A3 Swap interface.
Read more
AML/KYC Policy
How A3 Lab handles compliance for regulated services.
Read more
Product Disclosure
Scope, limitations and known constraints of A3 Swap.
Read more
Support
Talk to a human via Telegram or the in-app chat.
Read more