Clink

Clink is a global fundraising platform inspired by Ukraine’s “Jar” model but rebuilt on blockchain so anyone, anywhere, can raise money instantly during emergencies. Users create a Fund with one click, receive a shareable link, and donors can contribute without needing crypto knowledge, seed phrases, or gas fees.

With Coinbase Embedded Wallets, every user gets a secure passkey-based wallet automatically, enabling fiat on-ramps and seamless donations. Yellow Network powers gasless transactions so 100% of the donation reaches the Fund. To maintain trust, Clink integrates Self for identity verification and fraud-risk prediction, preventing scam fundraisers.

Clink focuses on simplicity, speed, and transparency—making cross-border emergency donations as easy as sending a link, with real-time proof that funds arrived. It’s a tool built for the next crisis, ensuring help moves faster than bureaucracy.

Clink is a React + Vite PWA built in TypeScript, designed for simplicity and speed in emergency fundraising. We integrated the Coinbase Developer Platform’s Embedded Wallets to give users a passkey-based, seed-less onboarding flow and instant fiat-to-crypto support. For transactions, we use Yellow Network to achieve fully gasless donations—meaning 100% of funds go directly to the cause without donors worrying about gas or network fees. To ensure trust, we integrated Self for creator verification and fraud-risk prediction, preventing scam fundraisers.

A big part of the build was stitching these partner technologies into a seamless, “normal-people-friendly” UX: wallet auto-creation, invisible session handling, and abstracted signing.