Building a bundler

If you want to build your own bundler, it's crucial that it passes all the tests covered in our test suite. More on this in the testing a bundler section. A good reference point to start with is our basic implementations of a bundler. This bundler focuses on being compliant, not on being fast.

Infinitism reference bundler

The repo for this bundler can be found here: https://github.com/eth-infinitism/bundler (opens in a new tab)

This is a reference implementation for a bundler, implementing the full EIP-4337 RPC calls (both production and debug calls), required to pass the bundler-spec-tests (opens in a new tab) test suite.

To build this bundler on your machine, please follow the instruction of the repository README (opens in a new tab)