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1inch

$20,000

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About

1inch provides a suite of powerful tools that enable developers to build smooth DeFi experiences on Ethereum, Ethereum L2s, and beyond. Hackers can utilize our open-source SDKs, smart contract protocols, and robust APIs to build onchain applications. In this hackathon, we are giving builders three distinct challenges:

  • Build applications with extensive use of 1inch API
  • Extend our Limit Order protocol with creative trading strategies for users
  • Expand the reach of 1inch Cross-chain Swap (Fusion+) to non-EVM chains

Prizes

🔗 Non-EVM Extensions for 1inch Cross-chain Swap (Fusion+) ⸺ $12,000
🥇
1st place
$6,000
🥈
2nd place
$4,000
🥉
3rd place
$2,000

Build a novel extension for 1inch Cross-chain Swap (Fusion+) that enables swaps between Ethereum and one of the following non-EVM chains: Sui, Aptos, Bitcoin/Bitcoin cash/Doge/Litecoin, Tron, Ton, Monad, Near, Starknet, Cardano, Stellar, XRP Ledger, ICP, Tezos, Polkadot, EOS, or Cosmos.

Qualification Requirements

Requirements:

  • Preserve hashlock and timelock functionality for the non-EVM implementation
  • Swap functionality should be bidirectional (swaps should be possible to and from Ethereum)
  • Onchain execution of token transfers should be presented during the final demo
  • Proper Git commit history (no single-commit entries on the final day)
📈 Extend Limit Order Protocol ⸺ $6,500
🥇
1st place
$3,000
🥈
2nd place
$2,000
🥉
3rd place
$1,500

Build advanced strategies and hooks for the 1inch Limit Order Protocol.

Project ideas:

  • Develop an options hook
  • Integrate concentrated liquidity
  • TWAP swap
  • Other creative projects are welcome

Existing examples built on top of Limit Order Protocol include ranged sells and dutch auctions (links in hackathon documentation)

Qualification Requirements

Requirements:

  • New functionality built on top of Limit Order Protocol (command line script for the implementation is perfectly fine, no UI needed)
  • Proper Git commit history (no single-commit entries on the final day)

Judging criteria:

  • Innovation and originality
  • Code quality/completeness
  • Documentation quality
🍾 Utilize 1inch APIs ⸺ $1,500
Up to 4 teams will receive $375

Utilize 1inch's infrastructure to help build your application

  • Build with our swap protocols (1inch Cross-chain Swap (Fusion+), Intent-based Swap (Fusion), Classic Swap, limit order protocol)
  • Build with any of our data APIs (price feeds API, wallet balances API, token metadata API, and many more)
  • Use our Web3 API to interact with the blockchain

Qualification Requirements

Requirements:

  • Your project uses at least one 1inch API to provide meaningful functionality for your users
  • Proper Git commit history (no single-commit entries on the final day)

Judging Criteria:

  • Practicality and usefulness
  • Code quality/completeness

Resources

1inch Hackathon Guide
https://hackathon.1inch.community
↗

Workshop

🛠️ Cross-chain Swaps and Beyond with 1inch

We will dive into the design of 1inch's various swap protocols. This includes Classic Swap (AMM/PMM aggregation), F...

This workshop is happening in-person

06:00 PM CEST — Friday, Jul 4, 2025 in Workshop Room 2

Jobs