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Examples

SDK Reference

Bundler Client vs MEE Client

FeatureMEE Client4337 Bundler Client
Cross-chain execution✅❌
Cross-chain gas payment✅❌
Transaction orchestration✅❌
Runtime composability✅❌
Intent-based execution✅❌
Support for EOAs✅❌
Single-chain gas abstraction✅✅
Batched transactions (same chain)✅✅

When to Use MEE Client

Choose the MEE Client when:

  • Your application spans multiple blockchains
  • You need cross-chain orchestration with a single signature
  • You want to pay gas fees using tokens from any chain
  • You need runtime composability between chains
  • You're building complex DeFi workflows that operate across networks

Unlike the traditional ERC-4337 Bundler Client which is limited to single-chain operations, the MEE Client is designed for cross-chain applications. The MEE Client is more complex and depends on the MEE infrastructure for cross-chain coordination.

Choose MEE Client when building applications that:

  • Span multiple blockchains
  • Require complex transaction sequences
  • Need to support both EOA and Smart Account users

When to Use Bundler Client

Choose the Bundler Client when:

  • Your application operates on a single blockchain
  • You need standard ERC-4337 account abstraction features
  • Performance on a single chain is prioritized
  • You need direct control over transaction bundling

The Bundler Client is limited to operations within a single chain - it cannot execute cross-chain transactions or pay for gas using tokens from different chains.