About
Move, own, and trade privately onchain. Unlink is the embedded privacy SDK for fintechs, payment processors, and foundations to give their users private balances, transfers, and DeFi access, on the EVM chains they already use. Audit-ready and compliant by default.
Prizes
Take a real, widely-used open-source app and give it privacy. Unlink is an embedded privacy SDK (deposit(), transfer(), withdraw(), execute()`), so you can route an existing product's flows through private balances without rebuilding it. A working "private [well-known app]" is the kind of demo that we want to see.
Suggested targets (or pick any reputable OSS app):
- Wallets — MetaMask Snap, Rabby, Rainbow: add privacy to an existing wallet
- DeFi — Uniswap, Aave, Euler: route swaps or supply/borrow through a private account via execute()
- Treasury — Safe, Sablier, Superfluid: private payouts, streams, or treasury moves
Judged on how cleanly Unlink slots into the app, the privacy it adds, and how close the result is to something a company can deploy immediately.
Qualification Requirements
- Start from a real, widely-used open-source app (a suggested target or a comparable reputable project) and integrate the Unlink SDK (
@unlink-xyz/sdk) during the event. - Integrate at the interface / SDK / module layer — wire the app's existing flows through Unlink. You do not need to redeploy the underlying protocol.
- Working demo showing the app's flow now running privately, plus a short video.
- Public repo + README linking the upstream project and explaining exactly what you added and what is now private.
Links and Resources
Build an app that combines Dynamic and Unlink to enable private nanopayments on Arc. Use Dynamic for wallet creation, Unlink for private accounts and private transaction routing, and Arc for high-throughput settlement. We’re looking for creative implementations of private transactions rather than one specific app category, surprise us with the use case.
This is a joint prize track. There will be a 1st place prize for $2k and a runner up for $1k.
Qualification Requirements
• Uses Dynamic SDK in any framework • Uses Unlink SDK • Uses Circle's Developer tools/tech • Functional MVP and diagram: Projects must demonstrate a working frontend and backend plus an architecture diagram. • Video demonstration + presentation: Succinctly outlining the project's core functions and its effective use of Dynamic, Unlink, and Circle's Developer tools/tech is required, supported by detailed documentation. • Link to GitHub/Replit repo
Links and Resources
Already building something? Continue it here and make it private. This track is for teams extending their own existing project by adding Unlink, so the work you arrive with counts and the privacy layer is what you ship this weekend.
Good fits: a payouts tool, stablecoin or wallet app, treasury system, DeFi product, AI agent wallet, trade settlement flow, or grants and rewards platform you've already started, now with private balances, confidential transfers, or private DeFi via execute().
Judged on how naturally privacy fits the existing product, UX, and usefulness.
Qualification Requirements
- Extend a project your team already started before the event (your own prior work) by integrating the Unlink SDK (@unlink-xyz/sdk). This is the Continuity track, so the base project must be genuinely yours.
- Add at least one private primitive: deposit(), transfer(), withdraw(), or execute().
- Demo must show your existing project's flow now running with Unlink privacy.
- Public repo + README that shows the project's pre-event state (commit history or release) and explains exactly what privacy you added this weekend.
