Stackup Blog

Stackup's New Direction

We're launching a new product to optimize and secure your on-chain financial operations.

Stackup's New Direction

Hazim and I founded Stackup because crypto hasn't fully lived up to its promise.

The Blockchain Promise

Your success drives us, and we're grateful for your partnership. We've got some big news to share.

Stackup migrates to Pimlico bundlers

Which bundler package is right for you?

A Guide to the Top ERC-4337 Bundlers: Features, Performance, and More

Stackup is more than a node operator -- account abstraction is the core of our business.

Why Choose Stackup as Your Go-To for Account Abstraction over Others, Like Alchemy?

When Visa needed ERC-4337 infrastructure, they turned to Stackup

How Visa used Stackup for gas payments

Breaking changes are coming to ERC-4337.

Big changes are coming to ERC-4337

This guide explores how developers can implement passkey authentication in Ethereum applications, leveraging ERC-4337 to create a seamless, secure user experience without compromising on self-custody.

How to Use Passkeys on Ethereum

We're launching a new product to optimize and secure your on-chain financial operations.

Stackup's New Direction

A deep dive into optimising the performance of ERC-4337 UserOp validation by Bundlers using native tracers.

Optimising eth_sendUserOperation with native tracers

Introducing Stackup's Paymaster, the ultimate solution for developers looking to simplify the process of sponsoring gas fees for their users.

Introducing Stackup's Paymaster

A look into ERC-4337 and how it can provide a 10x increase in today's wallet experience.

Why account abstraction is important and a practical pathway to achieving it

Account abstraction is a blockchain technology that allows users to use smart contracts as their accounts.

What is Account Abstraction?

EIP-4337, also known as the ERC-4337 standard, is a proposed Ethereum improvement proposal that aims to introduce account abstraction to the Ethereum network.

What is EIP-4337?

The ERC-4337 team has announced a bundler test suite as a security audit begins

Announcement: Bundler Test Suite

A combination of ERC-4337 and oAuth 2.0 could unlock access to Ethereum.

The Future of Ethereum Access: oAuth and Account Abstraction

The ERC-4337 bundler core developer team began the networking specification for ERC-4337 bundlers. Here's the summary.

Meeting Recap: Bundler P2P Specification

We're excited to announce that Stackup is now providing nodes as a service!

Announcement: Nodes as a Service

Account abstraction projects are working together on a public mempool for ERC-4337. Here's what you should know.

Meeting Recap: Public Mempool Kickoff

Paying for transaction fees on a blockchain can be a hassle, but with the use of a paymaster, it doesn't have to be!

How to Sponsor Transactions Using a Paymaster

One of ERC-4337's key components is the Paymaster, which enables third-party mechanisms to pay for transactions on behalf of users.

What are Paymasters?

If you are a developer you've likely come across the concept of smart contracts. But what exactly are smart contracts, and how do they work?

What Are Smart Contracts?

Signature aggregators allow multiple transactions to be made with a single signature.

Understanding Aggregators in ERC-4337

Use EIP-1271 to sign messages from smart contract accounts

How to validate signatures of smart contract wallets

One disadvantage of smart accounts over traditional wallets is that fees can be higher. But how much?

How Expensive Are ERC-4337 Gas Fees?