# Code execution sandboxes for AI agents (slim)

> 7 code execution sandboxes ranked by the Anchor benchmark. Leader Modal Sandboxes (BB). Isolated machines an agent can start in seconds to run code, install packages and use a filesystem, then throw away. Compared on start time, isolation, how long a sandbox can live, what it costs per second and whether state can be paused and resumed.

- Full: https://www.anchorterminal.com/categories/code-sandboxes.md (~2,650 tokens) · this version ~430 tokens · JSON https://www.anchorterminal.com/categories/code-sandboxes.json · canonical https://www.anchorterminal.com/categories/code-sandboxes
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-04

- Tools: 7 · agent-ready (BB+): 1 · accept x402: 0 · JSON: https://www.anchorterminal.com/api/v1/tools.json · by capability: https://www.anchorterminal.com/api/v1/capabilities.json
- Capabilities: sandbox.code, sandbox.fs, sandbox.persist, sandbox.browser, sandbox.gpu

| # | Tool | Grade | Score | Confidence | x402 | Auth | Where | Slim |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 33 | Modal Sandboxes | BB | 75.6 | medium | no | API key | local | https://www.anchorterminal.com/tools/modal-sandboxes.min.md |
| 111 | Vercel Sandbox | B | 69.6 | medium | no | OAuth or key | hosted | https://www.anchorterminal.com/tools/vercel-sandbox.min.md |
| 122 | E2B | B | 68.5 | medium | no | API key | hosted | https://www.anchorterminal.com/tools/e2b.min.md |
| 137 | Cloudflare Sandbox SDK | B | 67.8 | medium | no | None | local | https://www.anchorterminal.com/tools/cloudflare-sandbox-sdk.min.md |
| 177 | Runloop Devboxes | B | 65 | medium | no | API key | hosted | https://www.anchorterminal.com/tools/runloop.min.md |
| 183 | Daytona | B | 64.4 | medium | no | API key | hosted + local | https://www.anchorterminal.com/tools/daytona.min.md |
| 234 | Blaxel Sandboxes | C | 61 | medium | no | OAuth or key | hosted | https://www.anchorterminal.com/tools/blaxel-sandboxes.min.md |