npm i -g hotcell vs MuleRun
Side-by-side comparison of features, pros & cons, pricing, and community votes (2026).
🏆 MuleRun leads with 655 upvotes

Local sandboxes for AI agents on your Mac, Linux, bare metal
Hotcell is a self-hostable sandbox SDK designed for developers and AI practitioners who require secure, isolated environments for AI agents on their own infrastructure. Inspired by Cloudflare's Sandbox SDK, it offers a versatile solution that works seamlessly on Mac, Linux, and bare-metal servers, granting full control over resource allocation, token management, and network access. Its user-friendly setup makes it accessible for both human engineers and automated agents, enabling quick deployment and management of AI workloads without relying on third-party cloud providers. One of Hotcell's standout features is its ability to restrict egress traffic while still permitting access to necessary LLM providers, ensuring privacy and security. Additionally, the sandbox creates per-instance tokens that are ephemeral and delete themselves when the sandbox stops, adding an extra layer of security for API keys. Overall, Hotcell empowers developers to build secure, flexible, and scalable AI environments with ease and confidence.
Pros
- Self-hostable, giving full control over infrastructure and data security
- Supports multiple operating systems including Mac, Linux, and bare metal
- Fine-grained control over capacity, tokens, and network egress
- Enhanced security with per-sandbox tokens that auto-expire
- Easy to deploy and manage for both humans and automated agents
Cons
- Relatively new and may lack extensive community support or documentation
- Requires technical expertise to set up and optimize
- Limited information on pricing or enterprise features
Best for
- • Isolating AI model environments for secure testing and development
- • Running multiple AI agents on local infrastructure for privacy-sensitive projects
- • Creating secure sandboxes for AI API integrations without exposing keys
- • Developing and testing AI workflows in controlled, resource-managed environments
Pricing: Likely open source and free to use, with the potential for paid support or enterprise features. Based on its description, it appears to be designed as a developer-friendly SDK, but specific pricing details are not provided.

Raise an AI that actually learns how you work
MuleRun is an innovative AI tool designed for individuals and professionals seeking a highly personalized digital assistant. Unlike traditional AI solutions, MuleRun is a self-evolving personal AI that continuously learns from your work habits, decision patterns, and preferences, becoming more refined over time. It runs seamlessly on a dedicated cloud virtual machine, operating 24/7 even when you're offline, and proactively prepares the information and resources you need before you ask. With no coding or complex setup required, users can effortlessly raise their AI and watch it adapt to their unique workflows. This makes MuleRun especially appealing to busy professionals, entrepreneurs, and teams aiming to boost productivity through tailored automation and intelligent assistance.
Pros
- Self-evolving AI that learns and improves over time
- Runs continuously on a dedicated cloud VM, ensuring 24/7 availability
- Operates offline, providing proactive support without user intervention
- No coding or technical setup needed, user-friendly onboarding
- Highly personalized, adapting to individual work habits
Cons
- Limited transparency into the AI's learning process and decision-making
- Potential privacy concerns due to continuous data collection
- Uncertain pricing structure, which may be costly for some users
Best for
- • Automating routine tasks based on learned preferences
- • Personalized productivity coaching and workflow optimization
- • Proactive content or data preparation for meetings and projects
- • Supporting e-commerce operations with tailored customer insights
Pricing: Pricing details are not explicitly provided, but likely follow a subscription-based model with tiers depending on usage and features, considering it runs on a dedicated cloud VM and offers continuous learning. A free trial or basic plan may be available, with premium plans starting around a monthly fee.