E2B

E2B is a cloud sandbox platform for AI agents and applications that need to safely run code, execute tools, and work inside isolated environments. It gives developers secure virtual computers that agents can use for code execution, data analysis, file processing, and automation workflows without exposing the main application environment. The platform is especially useful for SaaS founders and AI builders creating coding agents, research agents, spreadsheet assistants, data analysis products, and tools that need to execute untrusted or dynamic code. Instead of building sandbox infrastructure from scratch, teams can use E2B to spin up isolated environments with configurable resources and concurrency. E2B supports longer-running sandbox sessions, concurrent sandboxes, usage-based compute, and paid upgrades for higher limits. This makes it practical for both prototypes and production agent workloads where security, reliability, and scalability matter. For FutureStack, E2B is a strong developer infrastructure listing because code execution is becoming a core capability for AI agents. It is best for developers, technical founders, and SaaS teams building agents that need safe execution environments instead of simple chat responses.