Mint your Mantle DevCard on Mantle, register for the Mantle Global Hackathon 2025 and submit your project, invite more builders using your DevCard, and unlock three reward pools: MNT, swag, and hardware wallets.
🎁 Prize Pool 1: Mint + Register Lottery
Complete these two steps to automatically enter Prize Pool 1:
- Mint your Mantle DevCard on the Mantle Network
- Successfully register for the Mantle Global Hackathon 2025
You'll be eligible for the Prize Pool 1 lottery:
- 🧢 10 winners — Mantle x Web3Insight x OpenBuild swag
- 🔐 10 winners — OSKey open‑source hardware wallet
- 💰 10 winners — share 100 MNT
Rules:
- 👉 Each account can win only one of the three prize tiers in Prize Pool 1 (no stacking within this pool)
- 📅 Winners will be announced on January 10 (Jan 10)
Swag distribution:
- For winners based in Mainland China and Hong Kong/Macau/Taiwan: swag will be distributed via shipping or designated offline events, arranged by the organizers.
- For winners in all other overseas regions: swag will be reserved for in‑person pick‑up at future offline events hosted or supported by Mantle and partners. Cross‑border shipping is not guaranteed at this stage.
🧑💻 Prize Pool 2: Invite Leaderboard (Stackable)
By using your DevCard to invite more developers to join the Hackathon and submit projects, you can compete for the Invite Leaderboard rewards.
How it works:
- Use your Mantle DevCard invite link
- Invite developers to register for the Mantle Global Hackathon 2025 and submit a project
The system will track how many valid invited project submissions come through your DevCard link and generate a leaderboard.
Rewards:
- 🏆 Top 1–5 inviters — share 500 MNT + swag
- 🥈 Top 6–10 inviters — share 100 MNT + swag
- ✅ Minimum requirement to be eligible:
- You must have ≥ 5 valid invited project submissions
A valid invited project submission means: the participant registered via your DevCard invite link and completed a Hackathon project submission according to the official rules.
Swag distribution for Prize Pool 2:
- Mainland China & Hong Kong/Macau/Taiwan: shipping or local offline events.
- Other overseas regions: in‑person pick‑up at future Mantle or partner offline events; cross‑border shipping is not guaranteed.
🏅 Prize Pool 3: DevCard Finalist Bonus (Stackable)
Prize Pool 3 is an extra bonus for teams that both participate in the DevCard Campaign and reach the Hackathon final list.
All teams that meet both of the following conditions will equally share an extra 300 MNT:
- At least one team member has minted a Mantle DevCard;
- The team's project is included in the official Mantle Global Hackathon 2025 final list.
In other words:
- You (or at least one teammate) mint a Mantle DevCard;
- Your team participates in Mantle Global Hackathon 2025;
- If your project makes it into the official final list,
- Your team will equally share 300 MNT together with other teams that also meet the above conditions.
Stacking rules:
An individual or team can:
- Join the Prize Pool 1 lottery
- Climb the Prize Pool 2 invite leaderboard
- And, if at least one member minted a DevCard and the project enters the final list, also earn the Prize Pool 3 finalist bonus
All three prize pools are independent and stackable.
👉 How to Join: 3 Simple Steps for Builders
Step 1: Mint Your Mantle DevCard
Mantle DevCard is more than just an avatar — it's your on‑chain developer profile in the Mantle ecosystem:
"Not just a profile — it's your proof of build. We'll analyze your repos, lines of code, and vibes. Nothing sensitive. Only public data."
👉 Mint link: https://card.web3insight.ai/mantle
Connect your wallet, switch to Mantle Network, and mint with one click. You'll get:
- A unique Mantle DevCard
- A personal invite link you can use to onboard other developers
Step 2: Register for Mantle Global Hackathon 2025 & Submit Your Project
👉 Hackathon registration link: https://www.hackquest.io/hackathons/Mantle-Global-Hackathon-2025?utm=openbuild
On the HackQuest page:
- Sign up as an individual or a team (2–5 members)
- Submit a working MVP or functional demo (testnet or mainnet)
- Provide the required details: GitHub repo, demo video or live demo URL, project description, etc.
Once you've done this:
- You're automatically in the Prize Pool 1 lottery
- If your team has at least one DevCard minter and later makes the final list, you'll also qualify for the Prize Pool 3–300 MNT finalist bonus
Step 3: Use Your DevCard Link to Invite More Builders (for Prize Pool 2)
If you also want to compete for the Invite Leaderboard (Prize Pool 2):
- Share your DevCard invite link on Twitter/X
- Invite developers to:
- Mint their own DevCard
- Register for the Mantle Global Hackathon 2025
- Submit their projects
3. When posting, we recommend including:
- Hashtag: #BuildOnMantle
- Tags: @Mantle_Official @0xMantleCN @OpenBuildxyz @Web3insightAI
All teams that:
- Register via your DevCard link, and
- Successfully submit a project,
will count as your valid invited project submissions, affecting your Prize Pool 2 ranking.
If those teams also have at least one member who minted a DevCard and make it into the Hackathon final list, they'll independently be eligible to share Prize Pool 3 (300 MNT) as finalist teams (Prize Pool 3 does not depend on who invited them; it only depends on: the team has DevCard + reaches the final list).
Final Call: Start Now
One DevCard, one Mantle Global Hackathon 2025, three reward pools (lottery, invite leaderboard, finalist bonus).
Start now:
- 👉 Mint your Mantle DevCard: https://card.web3insight.ai/mantle
- 👉 Register for Mantle Global Hackathon 2025 and submit your project: https://www.hackquest.io/hackathons/Mantle-Global-Hackathon-2025?utm=openbuild
Then use your DevCard invite link to bring more builders into Mantle, and leave a real proof of build on‑chain.