Infrastructure Providers

Paymasters

Alchemy

Alchemy Paymasters are smart contracts that enable decentralized applications (dApps) to implement flexible gas policies, including:

Sponsoring gas fees for users
Accepting gas payments in ERC-20 tokens instead of native blockchain currency

Pimlico provides account abstraction infrastructure including paymasters and bundlers. They offer two types of paymasters to abstract away gas fees for users in the ERC-4337 ecosystem. A verifying paymaster allows developers to sponsor on-chain gas fees for users, it utilizes an off-chain Pimlico balance loaded through a dashboard and an ERC-20 paymaster which is a permissionless on-chain smart contract that enables users to pay gas fees using their ERC-20 tokens and operates without requiring developer intervention.

Pimlico's paymasters can be seamlessly integrated with permissionless.js, a TypeScript library built on viem for ERC-4337 development .

Supported Networks

World Chain
World Chain Sepolia

Thirdweb

Not only does Thirdweb provide developer tools, but they also have ERC-4337 compliant smart contract accounts with role-based permission control. They offer two main types: Simple and Managed smart accounts.