Ethereum ERC-4337 ‘bundlers’ — How hard is joining the network? By Cointelegraph

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A new decentralized layer has been added on top of to make smart accounts possible with the introduction of ERC-4337 and account abstraction — but infrastructure providers suggest it may be tricky to participate profitably right now.

ERC-4337, commonly called “smart accounts” or “account abstraction,” was deployed on the Ethereum mainnet on March 1. “Smart accounts” are essentially a supercharged version of an Ethereum wallet. Although smart contract wallets already exist, they rely on centralized components. ERC-4337 changes that with a distributed network of “Bundlers” and “Paymasters.”

A model explaining the current Ethereum transaction flow. Source: Blocknative
A mental model explaining the new Ethereum transaction flow with ERC-4337. Source: Blocknative

Becoming a undler