Pimlico

Pimlico is an infrastructure provider of bundlers (Alto Bundler) and verifying and ERC-20 paymasters for the Account Abstraction standard (ERC-4337). The company describes itself as the largest in this category and states that it handles the biggest share of ERC-4337 transactions across Ethereum and L2s. It was founded in 2023 and is based in London.

Products Listed products are Alto Bundler, a Verifying Paymaster, an ERC-20 Paymaster that lets users pay gas in USDC or USDT, and the Permissionless.js TypeScript library. The ERC-20 paymaster matters for stablecoin apps because a user does not need to hold the native token to send a transaction.

Customers and coverage Target users are smart wallets, stablecoin apps, crypto PSPs and DeFi. Coverage is global, across more than 50 EVM networks.

Pricing The model is freemium, with a fee for sponsored gas and an Enterprise option. Free-tier limits, the markup on gas and per-network availability are not published. Teams building wallets or payment flows on ERC-4337 should ask which networks support each paymaster type.