txSync

Wallet developer tools

txSync

txSync is a developer and user toolkit for ZKsync that bundles a bridge, asset portal, paymaster builder (Tsuko), and SDKs in a single platform.

Freemium

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What is txSync?

txSync helps teams building on ZKsync ship faster by combining an asset portal, an Ethereum-to-ZKsync bridge, a no-code paymaster builder called Tsuko, and a contract playground. Developers can deploy custom paymasters to sponsor gas, automate transactions, and integrate ZKsync features through SDKs without managing the underlying infrastructure.

Sponsor gas and bundle user ops in your app or on your chain

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Developer resources from Alchemy

Overview

Wallets

What are Paymasters? (ERC-4337)

Learn the Function of Paymaster Smart Contracts in ERC-4337

Blog

Technical

ERC-1271 signature replay vulnerability

On October 27th 2023, Alchemy discovered a ERC1271 contract signature replay vulnerability that affected a large number of smart contract accounts (SCA), and led to risks when interacting with several applications.

Case study

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Building the future of secure crypto wallets with Zengo & Alchemy

In the world of cryptocurrency, security breaches and wallet hacks make headlines almost daily. But amid these stories of loss and vulnerability, one company has maintained a perfect security record.

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App store listings are independently reviewed and written by Alchemy using a combination of inbound submissions, editorial research, public project sources, and third-party directories, including ecosystem data from The Grid under the Open Database License, DefiLlama, DappRadar, Reown, and chain ecosystem pages.

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