Skandha is a modular, open-source ERC-4337 compliant bundler written in typescript. Skandha was developed and is maintained by the engineering team at Etherspot. The Etherspot SDK is a developer-friendly tool that can be installed via NPM or Yarn to unlock Account Abstraction features like transaction batching, sponsored transactions, meta transactions (i.e. allowing users to pay for gas with any stablecoin), and support for multiple chains, and transaction bundling.