ZKsync Account Abstraction & Paymaster Suite

txFusion delivers a cohesive suite of account abstraction infrastructure products for projects building on ZKsync Era, removing the complexity of paymaster engineering and enabling advanced smart account experiences out of the box.

Tsuko — Paymaster as a Service

Tsuko is a ready-to-use Paymaster as a Service (PaaS) component for ZKsync projects. Paymasters are a core feature of ZKsync Era's account abstraction model, allowing projects to sponsor gas fees for their users or enable ERC-20 token payments instead of ETH. Tsuko removes the complexity of building and maintaining custom paymaster infrastructure, giving any ZKsync project gasless or alternative gas payment capabilities accessible directly from the txSync app environment.

txSync SDK

The txSync SDK is a developer toolkit for integrating multiple paymaster functionalities directly into ZKsync-based applications. It abstracts paymaster interactions, allowing developers to add gas sponsorship and ERC-20 gas payment features with minimal code. The SDK supports multiple paymaster types and configurations, is fully documented via txSync Docs, and is designed to reduce development time for teams leveraging ZKsync Era's account abstraction.

Visor — Smart Account Plugin Suite

Visor is a modular plugin suite for ZKsync Era smart accounts, extending native account abstraction capabilities beyond standard EOA behaviour. The plugin architecture gives developers and power users on-chain superpowers through composable, modular smart account enhancements — enabling session keys, advanced access controls, and other account-level programmability on ZKsync.