Swap BTC to cirBTC

Send bitcoin, receive cirBTC at your own address.

Send bitcoin from an on-chain wallet, from Lightning or from Arkade, and receive cirBTC at an address you control on Ethereum.

We lock tBTC, another bitcoin-backed token, on Ethereum, and the claim converts it to cirBTC on a decentralized exchange and sends it to your address. The rate stays close to 1:1 and is shown on the card with the fees.

You do not need ETH for gas to receive: the claim is relayed for you, so an empty wallet works.

How it works

  1. 1Choose how you want to send bitcoin and enter the address for the cirBTC.
  2. 2Fund the swap with the address or invoice we show you.
  3. 3We lock the matching tBTC in the swap contract on Ethereum.
  4. 4The claim converts it to cirBTC and sends it to your address.

Questions

Which network do I receive cirBTC on?
Ethereum mainnet. The gas for the claim is priced into the quote as part of the network fee, so you do not pay it separately.
How long does it take?
An on-chain deposit needs Bitcoin confirmations before we lock our side. Paying from Lightning or Arkade skips that wait.
What happens if the swap fails?
Your bitcoin comes back to you: on-chain and Arkade deposits are refunded to a refund address you control once the timelock expires.

Other swaps

Independent service by Satora. Not affiliated with Circle.