// GLOSSARY -- WEB3 INFRASTRUCTURE

What is Pimlico?

1 min read Updated

Pimlico is an ERC-4337 infrastructure provider offering bundler and paymaster services — enabling developers to build account abstraction features into their applications with minimal overhead.

WHY IT MATTERS

Pimlico provides the infrastructure layer for account abstraction. Its bundler submits UserOperations to the blockchain, and its paymaster enables gas sponsorship (paying gas in any token or having dApps sponsor gas for users).

Pimlico's approach is modular and developer-focused: it provides the infrastructure without opinions about the smart account implementation. This flexibility means it works with any ERC-4337 compatible wallet.

The permissionless module system allows developers to add custom validation logic, session keys, and recovery mechanisms to smart accounts — enabling sophisticated account behavior.

FREQUENTLY ASKED QUESTIONS

Pimlico vs Biconomy?
Pimlico: focused infrastructure (bundler + paymaster), more modular. Biconomy: full-stack (smart accounts + bundler + paymaster). Pimlico is more flexible; Biconomy is more turnkey.
What is Pimlico's paymaster?
A service that sponsors gas fees. Developers configure policies (which UserOperations to sponsor, spending limits), and the paymaster pays gas on behalf of users.
Does Pimlico work with any smart account?
Yes — any ERC-4337 compatible smart account. It's account-agnostic infrastructure, working with Safe, Kernel, Biconomy accounts, and custom implementations.

FURTHER READING

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