Hopx

Hopx Sandboxes provide secure, isolated cloud virtual machines (VMs) designed specifically for executing dynamic, multi-language code and complex computations. By leveraging lightweight Firecracker micro-VMs, you can spin up fully isolated, production-like environments in roughly 100ms, ensuring robust security and zero cold-start lag. This makes Hopx the ideal foundation for developers, advanced AI agents, and Large Language Models (LLMs) requiring safe, scalable, and instant code execution capabilities.

Key Features

Hopx Sandboxes deliver the speed of containers with the security of dedicated virtual machines, enabling high-performance, trustworthy execution environments.

⚡ Instant Micro-VM Deployment and True Isolation

Spin up fully isolated Linux micro-VMs in approximately 100 milliseconds—a speed 10x faster than typical container cold starts. Because each sandbox runs in its own Firecracker micro-VM, you achieve true hardware isolation and a complete security boundary, crucial for safely executing untrusted or AI-generated code. This system also features full state persistence and no imposed runtime limits.

🌐 Broad Multi-Language Execution

Gain immediate flexibility with comprehensive support for the most common programming languages. Execute code across runtimes including Python, JavaScript/TypeScript, Bash (shell), Go, .NET (C#), Java, and PHP. Hopx provides production-ready SDKs for Python, JavaScript/TypeScript, and Go, ensuring consistent APIs and full feature parity, allowing seamless integration into any existing workflow.

🤖 LLM-Ready Execution Engine

Hopx is purpose-built for autonomous AI agents and LLMs. The engine ensures deterministic execution, structured error handling, and comprehensive request tracing. These features allow LLMs to reliably write and run code autonomously, receiving the precise, actionable feedback necessary for iterative problem-solving, automated tasks, and reliable code interpretation.

📊 Automatic Rich Output Capture

Go beyond simple console logs. Hopx automatically captures and surfaces complex output types, including Matplotlib charts, Pandas tables, HTML documents, and images. This capability is essential for data analysis pipelines, automated reporting, and AI Code Interpreters that need to visualize results directly back to the user or agent.

Use Cases

Hopx Sandboxes integrate deeply into existing workflows, providing secure and instantaneous execution for critical tasks across development and AI operations.

1. Building Secure AI Code Interpreters

Safely run untrusted, dynamic code generated by LLMs in a completely isolated environment. Developers can integrate Hopx to build ChatGPT-style code execution features into their AI assistants, eliminating security risks associated with executing unknown code on core infrastructure while providing the processing power needed for complex tasks like data manipulation or file management.

2. High-Performance Data Analysis Pipelines

Utilize the full-featured environment (including pre-configured libraries like Pandas, NumPy, and Matplotlib) to process large datasets, generate reports, and create visualizations. Since sandboxes can be created from custom templates and feature dedicated resources, you can guarantee consistent performance for complex computations, ensuring your data analysis workflows are both fast and repeatable.

3. Isolated Automated Testing and CI/CD

Run integration tests in parallel across thousands of disposable, clean environments. Hopx allows you to spin up a fresh, production-like sandbox in milliseconds for every test run, guaranteeing a clean state every time. This significantly reduces test environment setup time and eliminates configuration drift issues in CI/CD pipelines.

Unique Advantages

Hopx Sandboxes deliver core performance and security advantages that set them apart from traditional containerization and standard VM solutions.

• 10x Faster Cold Starts: With 100ms cold starts, Hopx eliminates the critical latency barrier often faced by serverless containers, allowing for truly responsive, event-driven execution at massive scale.
• True VM Isolation: Unlike container solutions that share a host kernel, every Hopx Sandbox runs in a dedicated Firecracker microVM. This architecture provides complete separation between sandboxes, offering robust enterprise-grade security and zero compromise when running untrusted code.
• Global Scale and Availability: Deploy your execution environments across 6 regions worldwide and leverage the auto-scaling capability to handle millions of concurrent sandboxes. This infrastructure ensures low latency for global applications and reliability under peak load.
• Developer-First Experience: Benefit from best-in-class, production-ready SDKs for Python and JavaScript/TypeScript, featuring full TypeScript support, structured errors, and request tracing, ensuring an efficient and reliable developer experience (DX).

Conclusion

Hopx Sandboxes eliminate the traditional trade-off between execution speed and security, providing an instantly available, fully isolated execution environment optimized for the demands of modern AI and high-performance computation. If your application requires running dynamic code safely, reliably, and at massive scale, Hopx delivers the foundational technology you need. Explore how Hopx Sandboxes can secure and accelerate your next project.