AI agent sandbox comparisons and alternatives
AgentKernel runs sandbox workloads through a CLI, HTTP API, MCP server, and SDKs. You can use a local backend, operate your own deployment, or configure an experimental hosted backend. Isolation and supported operations depend on that choice.
Start with the comparison closest to your decision:
| You are evaluating | Read | Main question |
|---|---|---|
| E2B alternatives | AgentKernel vs E2B | Do you want local execution, managed infrastructure, or self-hosting? |
| Daytona alternatives | AgentKernel vs Daytona | Do you need a local runtime or a broader sandbox platform workflow? |
| Docker for coding agents | AgentKernel vs Docker Sandboxes | Are you comparing ordinary containers or per-sandbox microVMs? |
| A first sandbox for an agent | Choosing the best sandbox for AI coding agents | Which environment meets your execution and access requirements? |
| A sandbox with MCP | AgentKernel MCP server | How will an assistant invoke isolated tools? |
E2B
The E2B comparison covers local execution, E2B's managed and self-hosted options, and a small workload migration trial. AgentKernel's remote bridge also lets you retain E2B as the execution provider.
Daytona
The Daytona comparison covers environment tools, integration choices, and how to evaluate moving a workload. The Daytona remote backend is an alternative to moving execution immediately.
Docker Sandboxes
The Docker comparison separates ordinary Docker containers, Docker Sandboxes microVMs, and AgentKernel's Docker backend. They should not be treated as the same isolation boundary.
Other projects to evaluate
The links below preserve starting points for other ecosystems. They are not a feature-parity or performance ranking; use each project's current documentation to evaluate your requirements.
Gondolin
Cloudflare Sandbox
Cloudflare Sandbox documentation
Vercel Sandbox
Modal Sandboxes
Deno Sandboxes
Other notable projects
AgentKernel's position
AgentKernel is useful when you want to choose where agent commands run and integrate that execution into your tools. Local operation means you maintain the host and backend. Hosted operation means you also depend on the selected provider.
For VM isolation, select a VM backend and meet its host requirements. Docker and Podman retain container isolation. Firecracker full-state pause and fork are preview capabilities with a narrower support boundary than ordinary command execution.
Start here: Install AgentKernel, complete the quickstart, or follow the coding agent workflow.