Base2025 - 2026/EVMCompleted

Paycrypt

Buy utilities directly on-chain

On-chain payment infrastructure on Base. Smart contracts handled transaction execution and user payment flows, built for production reliability and simplicity.

Source code

Base: Deployment target
Foundry: Test framework
9 mo: In production

The problem

Paying for everyday utilities on-chain is clunky and unreliable for normal users.

The approach

On-chain payment infrastructure on Base where smart contracts handled transaction execution and user payment flows. This was paid work over nine months, and the product has since gone offline.

My role

Smart contract development, as a paid engineer on the team

Highlights

Payment contracts written and maintained for Base
Transaction execution and user payment flows
Foundry tested with a focus on reliability
Open-source repository

SolidityBaseFoundryOpenZeppelinEthers.js

See all work