Package builder implements a module for bundlers to act as MEV searchers and send batches to the EntryPoint via a Block Builder API that supports eth_sendBundle.

Package checks implements modules for running an array of standard validations for both the Client and Bundler.

Package entities implements modules for reputation scoring and throttling/banning of entities as specified in EIP-4337.

Package noop implements basic no-operation modules which are used by default for both Client and Bundler.

Package relay implements a module for private bundlers to send batches to the EntryPoint through regular EOA transactions.

ComposeBatchHandlerFunc combines many BatchHandlers into one.

ComposeUserOpHandlerFunc combines many UserOpHandlers into one.

NewBatchHandlerContext creates a new BatchHandlerCtx using a copy of the given batch.

NewUserOpHandlerContext creates a new UserOpHandlerCtx using a given op.

BatchHandlerCtx is the object passed to BatchHandler functions during the Bundler's Run process.

UserOpHandlerCtx is the object passed to UserOpHandler functions during the Client's SendUserOperation process.

BatchHandlerFunc is an interface to support modular processing of UserOperation batches by the Bundler.

OpHandlerFunc is an interface to support modular processing of single UserOperations by the Client.