FurlPay Build Challenge · Season 1
Ship on x402 & Arbitrum. Get funded, featured, and fast-tracked.
Build the agentic payments future on FurlPay's rails — AI-agent payments, stablecoin checkout, travel and dev tooling. Submit a finished build or just an idea. Rolling submissions, USDC prizes, and a feature to our whole audience.
Four tracks
Best Agentic
AI agents that discover, negotiate and pay for things autonomously via x402.
Best Consumer
Delightful travel, payments or investing experiences built on FurlPay rails.
Best Infra
SDKs, x402 middleware, facilitators, dev tooling — the plumbing others build on.
Wildcard
Anything stablecoin- or Arbitrum-native that surprises us. Go weird.
Not sure what to build? Start here
Idea 01
An AI travel agent that books a hotel end-to-end: searches, hits a 402, signs, settles USDC, gets a receipt.
Idea 02
An x402-metered API (weather, data, inference) that prices per call through the FurlPay facilitator.
Idea 03
A one-tag stablecoin checkout widget any merchant can drop into a page.
Idea 04
A corporate travel bot that settles team expenses in USDC with spend limits.
Idea 05
An on-chain settlement explorer that visualizes x402 payments in real time.
Idea 06
A cross-border creator-payout bot: one click, many wallets, one USDC ledger.
New to the stack? Start at the developer portal, docs, and the x402 resource catalog.
How it works
1 · Build
Use FurlPay's SDKs, x402 facilitator and Arbitrum rails. An idea-stage submission is welcome too.
2 · Submit
Pick a track and submit your project below — repo and demo links optional but encouraged.
3 · Get featured
We review on a rolling basis and spotlight standout builds on furlpay.com, X and YouTube.
What you get
USDC prizes
A USDC prize pool each season for the strongest builds across all four tracks.
Developer fast-track
Priority access to the FurlPay developer program, API credits and grant-partner intros.
Reach
Winning and featured projects get amplified to our whole audience across furlpay.com and socials.
Submit your project
Submitted builds
Build Challenge FAQ
Who can enter the FurlPay Build Challenge?
Anyone — solo builders, teams, students and startups. You can submit a finished build or an idea you plan to ship. There is no entry fee.
What should I build?
Anything on FurlPay's rails: x402 agentic payments, stablecoin checkout, travel/booking flows, or developer tooling on Arbitrum. Pick the track that fits and use the idea prompts on this page for inspiration.
Do I need a working demo to submit?
No. Repo and demo links are optional. A clear one-liner and description are enough to enter; working builds are more likely to be featured and win.
How are winners chosen and what do you get?
We review submissions on a rolling basis for originality, use of FurlPay/x402, and craft. Featured and winning builds receive USDC prizes, developer-program access with API credits, and a feature across furlpay.com and our socials.
Who owns my project?
You do. Submitting keeps full ownership of your code and IP with you — we only ask permission to feature it publicly.
Got a build in you?
Submit a project or an idea — it takes two minutes.
Submissions are reviewed on a rolling basis. Prizes and perks are awarded at Furlpay's discretion per season. You retain full ownership of your code and IP. Crypto assets are high risk and can lose value.