Capital that exists for one transaction
Live capacity, fees and break-even costs on Ethereum, Base, BNB Chain and Arbitrum. Every fee and balance below is read on chain at the current block — nothing here is estimated except gas units, which are labelled where they appear.
Read this first
A flash loan is Atomic: the credit facility, whatever you do with the money, and the full repayment all happen inside one single transaction. If the money plus the fee is not back in our pool by the last instruction, the entire transaction reverts and it is as though nothing ever happened.
Quote a flash loan — what it costs, and the edge your route has to beat
Capacity board — what is flash-loanable right now
Qualified transactions — every one of these closes inside the same transaction
The contract — deployed, audited, and yours to inspect
Every drawing runs through one immutable contract. It has no owner, no admin key, no pause and no upgrade path, so nothing about it can be changed — by us or anyone else — after deployment.
Do not send tokens to this address. It holds nothing between transactions and there is no rescue function, so anything sent directly is unrecoverable.
Apply for a facility
Tell us who you are and what you trade. Applications are reviewed by the desk and we reply within 1–2 business days. Professional and institutional counterparties only.
Elsewhere on Atomic
- Swap crypto across chains — non-custodial, no seed phrase and no gas token needed. Live rates on ETH to USDT, BTC to USDT and ETH to BTC.
- Everything Atomic offers — the exchange, payments, the gas station and this desk, in one place.
- Gas station — buy native gas on a chain where you hold none, paid for from a chain where you do.