Most Worthwhile Problem
A clear, meaningful problem and a product real users would want.
Agentic Buildathon
Build a working agentic payments demo with Reap and 65labs. Explore how an AI agent can find products, check out and pay with a person’s permission and spending limits.
Reap provides financial infrastructure for businesses, connecting cards, payments and stablecoins. At this buildathon, you’ll use its tools in a sandbox to build your own agent experience.
Date & timeFriday 9 October · 3–10 pm SGT
WhereSQ Collective, 65 Mohamed Sultan Rd, Singapore
TeamsEveryone must be in a team of 2–4. Submit your team by 4:30 pm.
Arrival cutoffArrive by 4:30 pm. Later arrivals cannot participate.
At check-in
Register your team
formed a team? the team lead registers it here, once per team. every member gets your team’s reap api key by email within ~5 minutes. teams lock at ~4:30pm.
Register your team Opens Reap Buildathon Teams in a new tab.Updates & help
Updates and submission instructions come through Telegram. Join the participant group to stay in the loop.
Telegram group
Updates, help and announcements. Join the Telegram group ↗
Who to ask
Reap engineers: product, API & sandbox help. 65labs crew: teams & event guidance. Solo? Ask the organisers to help you find teammates.
Schedule
All times are Singapore time. Two deadlines to remember: submit your team by 4:30 pm and your project by 9 pm sharp.
- Registration and team formation
Formed a team? The team lead registers it once on Reap Buildathon Teams ↗.
- Kickoff and product/API walkthrough
- Start building
- Submit your team · doors close
Everyone must be in a team of 2–4. Submit your team by 4:30 pm to receive Reap sandbox API access. Anyone arriving after 4:30 pm cannot participate.
- Dinner · submission form opens
The submission form and instructions go out at 7:00 pm, two hours before the 9 pm deadline.
- Project submissions close — 9 pm sharp
Submit through the submission form. The form and instructions go out at 7:00 pm, two hours before the deadline. Check that reviewers can open your links.
- Optional demos — share what you built
- Event ends
Prizes & judging
Two prize tracks. Each carries $500 cash and $500 in credits.
Best Bridge Between Onchain and Real World
A useful link between stablecoins and real-world spending or payments.
Judging criteria
Technical merit
Quality of implementation and meaningful Agentic integration. Clear payment authority and spending controls.
Polish
Usability and attention to detail. Understandable approval, error and payment states.
Execution
Delivery on the user problem. A working core experience demonstrated convincingly.
Wow factor
Originality and a memorable demonstration of what agentic payments enable.
Track fit
Judges also assess fit with your selected prize track.
Meet the judges
Anna Chiu
Reap · Head of Agentic Payments
Harris Leow
Reap · Head of Product
Agrim Singh
SpaceXAI · AI Adoption Engineer
Gabriel Chua
OpenAI · DevX Engineer
Judges review submissions after the event. Reviews are due by Monday 12 October at 5:00 pm SGT; the results announcement date is still to be confirmed. Prize currency and fulfilment details will follow.
What to build
Make a useful experience with agentic payments at its core. These themes are starting points, separate from the prize tracks.
Business spend
Help a team purchase or pay within a budget.
Everyday life
Make a recurring or personal purchase easier.
Commerce in chat and apps
Bring buying into a chat, community or app.
Stablecoin money and agent economy
Explore programmable money and agents paying for work.
Build with Reap’s API
Use the Agentic module for product discovery, pricing and checkout. You build the agent’s logic and the experience around it — including how a person gives permission and sets a budget. Cards Issuing is optional. Read the Agentic Payments docs.
Or use Payward / Kwal
Kwal adds a user-owned crypto wallet and a funded vault to a card payment flow built on Reap’s infrastructure. Its agent skill helps coordinate setup and wallet-backed purchases. Explore the Kwal agent skill.
Sandbox only
Every project must use Reap’s Agentic module, Payward’s non-custodial wallet with Agentic, or both. Checkout is simulated: no real merchant purchases or deliveries. Use test assets for Kwal funding. Don’t bypass Agentic by scraping checkout or handing raw card details to an AI model. A generic search-and-buy chatbot is discouraged. Show a useful, distinct experience.
Supported merchants
Use this list to choose a vertical and a use case you can build in the sandbox. The Agentic module doesn’t support every category: travel booking and restricted categories, such as gambling and adult content, are out of scope.
152 merchants across 24 categories
Examples include electronics, coffee, groceries, fashion, home goods and books.
Check your intended merchant and market before building. A listed merchant does not override restricted-category rules or guarantee a working sandbox flow. View Reap’s current merchant sheet.
Example demos
Examples shared by the Reap team. Watch for ideas; your project can take a different approach.
AGNT Hub · Pocket agent
Animoca Minds · Visa/Reap
Cashi · Agentic checkout
Custos · Reap demo
Payward · Agent payment showcase
Project submissions
Submissions close at 9:00 pm sharp. The submission form and instructions go out at 7:00 pm, two hours before the deadline, via Telegram.
Prepare your submission
- Team and project details
- Selected prize track(s). Enter multiple tracks; win only one.
- Recorded demo — 3 minutes or less
- Source-code repository link
- A brief integration explanation
A demo that lands
A clear problem
Who is it for? What do they need? Show why the outcome matters.
A working core loop
Show the main experience first. Make permission, spending limits and the payment result visible.
Meaningful integration
Show where Reap Agentic or Kwal is essential to the product.
One memorable moment
Make one useful interaction work well enough that judges remember it.
Keep it fair
Open source
Publish your project code under an approved open-source licence.
New work only
Start your project from scratch during the hackathon.
Respect rights & policies
Only use code, data and assets you have the right to use. Follow legal, ethical and platform requirements.
Projects that violate these rules may be disqualified.
Credits & API access
Here’s how to get the tools for your build.
OpenAI API, Codex & Devin
OpenAI credits (one Codex + one API link) are emailed to you automatically after you check in on Luma. Devin credits are linked to the email you registered with.
devin credits: sign in with the email you used for this event to claim your code. only emails on our approved list can claim.
get devin accessReap API · access per team
Submit your team of 2–4 by 4:30 pm to receive a sandbox API key. Reap access is distributed by team, not by individual. Reap API documentation.
register your team: the team lead submits it once, with every member’s luma email. every member gets your team’s reap api key by email within ~5 minutes. teams lock at ~4:30pm.
after you register, each team gets a reap sandbox api key plus a test card by email. the card number has some x’s in it, so replace every x with a 4. cvvs shorter than 3 digits get leading zeros. treat both as secrets.
register your teamKwal · public access
Anyone can access Kwal; you don’t need to wait for a team key from the organisers. Follow the public guide to register, connect your own EVM wallet and set up a vault and sandbox card with test funds on Ink Sepolia. Setup can take a few minutes, so start early. Kwal setup guide.