E2B, formerly FoundryLabs, has secured $21 million in a Series A funding round led by Insight Partners. The startup focuses on developing an open-source, sandboxed cloud infrastructure designed specifically for AI agents. This funding will enable E2B to further develop and expand its platform, catering to the growing demand for secure and scalable environments for AI agent deployment. The company aims to provide developers with the tools necessary to build and manage complex AI applications more efficiently.