$5,000 in rewards. One week to ship the best yield products with LI.FI.

DeFi Mullet is a hackathon series for builders who want to ship real DeFi yield products — not pitch decks or mockups, but working code that puts money to work.

The first edition kicks off April 8th. You get time until April 14th to build on LI.FI Earn — a single API that connects you to 20+ vault protocols across 60+ chains with one-click deposit execution. No more stitching together custom integrations protocol by protocol, chain by chain.

This is an early builder edition, which means smaller crowd and better odds of winning the bounty. If you've been looking for a reason to start building in DeFi yield — this is it.

How to Participate

Ship a working Earn-powered project in a week — then submit it publicly.

• Join the builder group (Telegram / WeChat)
  • Get announcements, office hours, and help from the LI.FI team + other builders. Ask for test funds if you need them for verification.
  • Telegram: https://t.me/lifibuilders
  • WeChat: add brucexu-eth and reply "DeFi Mullet" to join the hackathon group
• Register: https://forms.gle/RFLGG8RiEKC3AqnQA
• Pick a track: Choose the category that best fits your project (Yield Builder / AI × Earn / UX / Tooling / Open)
• Build and submit
  • Build a functional app (preferred) or record a demo video showing real execution
  • Post your project on X during your region’s submission window on April 14
  • Fill the submission form with links (X post + app/video + repo)
  • Submit: https://forms.gle/1PCvD9BymH1EyRmV8

(Recommended) If you're using a coding agent like Codex, Claude Code, or OpenClaw, simply copy and paste the following into it—the agent will guide you through the events and help with brainstorming, coding, and submission.

Read <https://raw.githubusercontent.com/brucexu-eth/defi-mullet-hackathon/refs/heads/main/guide.md> and then tell me how to participate in this hackathon step by step.

Why "DeFi Mullet"?

The mullet: clean and simple user experience up front which ensures easy access to yield opportunities, while all the execution logic is orchestrated by LI.FI’s cross-chain infrastructure in the back.

Users see a one-click deposit. Developers know what's behind it — 20+ protocols, multi-chain execution, and a full infrastructure layer doing the heavy lifting.

Timeline

  ◦ Submissions Open at 09:00AM 
  ◦ Submissions Close at 12:00PM**

• APAC window (UTC+8): April 14, ◦ Submissions Open at 09:00AM ◦ Submissions Close at 2:00PM Choose the window that matches your region — we provide two windows so builders don’t have to post at inconvenient hours. Submission form: https://forms.gle/1PCvD9BymH1EyRmV8 | | ~Apr 21 | 🏆 Winners announced |