Zircuit was proud to participate in the ETHGlobal Buenos Aires 2025 Hackathon. The event ran from November 21st to 23rd at the Buenos Aires Convention Centre. For this event, Zircuit gave out five prizes in three categories: best DeFi project on Zircuit (two winners), best use of account abstraction (two winners), and best Zircuit integration. We also gave out a DeFi prize in honor of our new Zircuit Finance announcement this week. As we build towards providing some of the best yield in the space, we aim to re-ignite the spark of DeFi on Zircuit to provide composable options onchain. Our second prize involved account abstraction: we weren’t looking for anything specific here, but we wanted to make sure that useful and interesting account abstraction primitives continue to evolve. Finally, we awarded one prize for simply integrating Zircuit into existing tools, to make sure that your favourite dapp can use Zircuit by default. We had a number of great submissions, and we’re proud to highlight our winners below.
We asked hackers to build towards the goal of generating the best APY or improving the user experience of DeFi for the masses on Zircuit.
Liquidation Ckt Brkr took home the first-place prize for best DeFi project. Aiming to bring traditional finance margin call behavior to DeFi, we saw the team build an effective and useful Solidity wrapper. The idea was to prevent liquidations in cases of very short drops in price. This allows liquidations to more closely mimic margin calls of old: users could potentially re-collateralize their position if there’s no instant liquidation. Designed to work around many existing DeFi applications, its effective execution shows a lot of promise.
Bagra Markets was awarded the second-place prize for this category. They aimed to bring Kalshi's prediction markets onchain. That’s an interesting premise, though there’s a need to make sure onchain assets accurately represent the markets. However, given the attention Kalshi is attracting, we found the project very interesting and would love to see it mature and gain traction.
This prize was awarded to creative and useful applications of account abstraction on Zircuit.
SOS NOT SUS took home the first-place prize for this category, building a way to quickly send digital assets in a hot wallet into a cold one. Envisioned for emergency situations where you don’t want to give up your hard-earned assets, it uses account abstraction to move funds on multiple chains to a safe wallet via a Zircuit transaction. It’s effective, but we hope no one ever actually needs to use it – stay safe out there!
Second place went to Multisub, a project that combined account abstraction and multi-sig wallets. The goal was to allow multisig wallets to delegate access via account abstraction primitives to allow things like limited spends over a duration, while still keeping funds safe. We liked the idea of combining two key concepts in digital asset management.
This prize was awarded to one team that integrated Zircuit into an existing web3 project.
Wolfy integrated Zircuit into a fork of Rabby – their favourite wallet, according to the team – adding support for EIP-7702 transactions and functionality along the way. With their fork, users can now view their delegations or point their account to a contract implementation to enable smart-contract behaviors such as batch transactions and more advanced workflows. Hopefully, the Rabby team takes note of this work!
ETHGlobal Buenos Aires highlighted the creativity and technical strength of builders in the ecosystem, and we were excited to see so many teams choose Zircuit for their projects. From new DeFi ideas to useful account abstraction tools and thoughtful integrations, the submissions showed real momentum around what is being built on Zircuit. As we continue to grow the ecosystem and expand Zircuit’s capabilities, we look forward to supporting more teams and seeing these projects evolve. Congratulations to all the winners and participants.
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