Post-quantum swapsanywhere to anywhere

Two parties trade directly, with no bridge, no oracle, and no key for a quantum computer to break.

The QuipSwap extension composing a swap offer: sending 0.25 ETH on Base, receiving 500.00 USDC on Base, with the counterparty's address and a one-hour time per step.
Post-quantum swaps on
  • Base
Live
More phasing inEVM
  • Ethereum
  • BNB Chain
  • Arbitrum
  • Monad
  • Polygon
  • Robinhood
  • Plasma
  • Avalanche
  • Optimism
  • Mantle
  • Celo
Non-EVM
  • Solana
  • Bitcoin
Why now

Governments are taking quantum hackers seriously

US and European rules require critical industries like finance and networking to begin protecting themselves from quantum attacks by 2028.

Richard Carback, co-founder and CTO of Postquant Labs, on quantum attacks.Zcash Blockspäti · Berlin
The protocol

How a swap settles

You can think of the protocol like trading wallets. Each wallet needs a shared key and a personal key. Once you reveal the shared key to claim your assets, your partner can now retrieve a copy to withdraw their half. No hackable bridge or oracle, just post-quantum goodness.

The pools are what get drained, and the contract is rarely what breaks: $292M left KelpDAO in April 2026 after a single off-chain verifier was fed a burn that never happened, per Chainalysis.

Base
You
0x3a8f…3C82
Main account
1 ETH
In account
1 ETH in your Quip account
Offer drafted for0x9F2b…0e13Nothing sent, nothing escrowed
Optimism
Counterparty
0x9F2b…0e13
Trading account
1000 USDC
In account
1000 USDC in theirs
This step

You address the offer to a Quip account you already know. It is signed intent, not a transaction: nothing is escrowed, no gas is spent, and either side can walk away for free.

Every step

If either side stops, the deadline passes and each asset returns to whoever committed it. Deadlines are asymmetric, so acting honestly is always the protected position.

Both sides settle, or neither does.

Coming soon

Making post-quantum swaps convenient

The Quip extension holds your post-quantum keys, signs each leg of a swap, and connects to dApps like the wallet you already use.

Name the terms
Send the link
Settled on both chains
The extension is not released yet. Values shown are illustrative.
Coming soon

Making swap intents discoverable

Today you have to know your counterparty. Soon you will be able to post an offer to the Decentral Limit Order Book and let your match find you. Nothing is escrowed until a taker commits.

Explore a demo
Listings, rates, and settlement histories shown are illustrative.
What is shipped

What is live, and what is next

Bilateral cross-chain swapsLaunched and live on Base, with more EVM chains coming very soon, then Bitcoin and Solana.Live
Order bookPost an offer in the open and let a counterparty find you.Coming soon
Browser extensionWallet, swap, and dApp connect, in the browser you already use.Coming soon

Oak Security reviewed the QuipSwap contracts. The findings will be published shortly.

Coverage

What you can swap

A swap can cross two chains, or stay on the same one.

These assetsin any combination on either side
  • Native coinsThe chain's own coin
  • ERC-20Fungible tokens
  • ERC-721One of a kind
  • ERC-1155Fungible and unique together
On these networks
  • Base
Live
More phasing inEVM
  • Ethereum
  • BNB Chain
  • Arbitrum
  • Monad
  • Polygon
  • Robinhood
  • Plasma
  • Avalanche
  • Optimism
  • Mantle
  • Celo
Non-EVM
  • Solana
  • Bitcoin
Before you start

Common questions

Those hold classical keys, the kind a quantum computer is built to break. A Quip account wraps your classical keys with post-quantum keys, and QuipSwap is how that account reaches other chains without stepping outside its own protection.

It settles like an OTC trade rather than a pool trade: you name a counterparty, both sides escrow, and timed windows bound each stage. The extra steps remove the risk that someone steals the collateral behind your bridge or your liquidity pool.

A bridge holds your asset in a pool and issues a wrapped claim against it, which makes the pool worth attacking. Here each asset stays in a contract on its own chain, so custody never moves.

The locks are hash-based, and hashes stay hard for a quantum adversary. Signature checks happen in the Quip account layer, where post-quantum keys live.

Base today. Swaps cover native coins, ERC-20, ERC-721, and ERC-1155, and the protocol settles across two chains or the same one. More EVM chains are coming very soon, with SVM networks to follow.

Today you bring one: offers are link-addressed, so you agree terms with a specific person and send them the link. An order book where you can publish an offer and let a counterparty find you is coming soon.

The deadline passes and you reclaim your asset in full from the contract on your own chain. Deadlines are asymmetric, so acting honestly is always the protected position.

Yes, by Oak Security. The findings will be published shortly.

Create an account, commit to terms, settle your trade