Compare code sandboxes
Agent 37 vs Cosmonic
Two code sandboxes tools for AI agents, side by side. Facts come from each tool's own site.
Agent 37
agent37.comCloud sandboxes for running AI agents, positioned as lower-cost agent infrastructure.
Visit Agent 37
Cosmonic
cosmonic.comWebAssembly sandboxes for agent code, MCP servers and tools, with no access until you grant it: the free Cosmonic Desktop app (public beta) and Cosmonic Control for Kubernetes. Open source core: CNCF wasmCloud.
Visit Cosmonic| Agent 37 | Cosmonic | |
|---|---|---|
| What it does | Cloud sandboxes for running AI agents, positioned as lower-cost agent infrastructure. | WebAssembly sandboxes for agent code, MCP servers and tools, with no access until you grant it: the free Cosmonic Desktop app (public beta) and Cosmonic Control for Kubernetes. Open source core: CNCF wasmCloud. |
| In their words | Cloud Sandbox for Agents | Agent 37 | Cosmonic: Sandbox AI agents and tools |
| Open source | No | No |
| Website | agent37.com | cosmonic.com |
| Link checked | 2026-10-20 | 2026-10-20 |
More options:Alternatives to Agent 37Alternatives to CosmonicGuide: Best code sandboxes for AI agents
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