Hopx

The Cloud for AI Agents provides a secure execution environment for running untrusted code, particularly from AI systems. It creates isolated micro-VMs using Firecracker technology, offering hardware-level security far beyond traditional containers or serverless functions. Developers can execute scripts, tests, jobs, and AI agent code without risking their host infrastructure, making it ideal for scenarios where AI systems generate code that needs to be tested or run safely.

What sets The Cloud for AI Agents apart is its combination of speed and security. Sandboxes launch in approximately 100 milliseconds from prebuilt snapshots, enabling near-instant cold starts. The platform provides full filesystem access, real-time output streaming, and unlimited runtime capabilities—sandboxes can run continuously for hours, days, or weeks with full state persistence. Developers interact with the service through a straightforward SDK available for Python and JavaScript, making integration into existing workflows simple.

This tool primarily benefits engineering teams building AI-powered applications, particularly those dealing with user-generated code, AI agents, or automated systems that need to execute untrusted code safely. Real-world use cases include running AI-generated scripts at scale, conducting integration tests in completely isolated environments, processing data transformations without time constraints, and enabling users to execute custom code within SaaS applications without security risks. Research teams also use it for reproducible ML experiments where environment consistency is critical.