# Agent 37 Cloud vs Deno Sandbox (slim)

> Deno Sandbox scores 50.3 (D) on agent readiness against Agent 37 Cloud's 46.1 (D), and leads in 4 of 7 scored categories. Agent 37 Cloud leads on maintenance & community. Both do sandbox persist. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/agent37-vs-deno-sandbox.md (~2,600 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/agent37-vs-deno-sandbox.json · canonical https://www.anchorterminal.com/compare/agent37-vs-deno-sandbox
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Deno Sandbox scores 50.3 (D) on agent readiness against Agent 37 Cloud's 46.1 (D), and leads in 4 of 7 scored categories. Agent 37 Cloud leads on maintenance & community. Both do sandbox persist.

- Agent 37 Cloud: D 46.1, rank #759 of 842 · https://www.anchorterminal.com/tools/agent37.min.md
- Deno Sandbox: D 50.3, rank #689 of 842 · https://www.anchorterminal.com/tools/deno-sandbox.min.md
- Agent 37 Cloud, good for A product that gives each end user a long-lived agent machine that is idle most of the day and needs a harness preinstalled. Ahead on Maintenance & community, 65 against 45. Also A hosted endpoint, with nothing to install.
- Deno Sandbox, good for Short runs of untrusted or generated code that need outside API keys kept out of reach, and teams already on Deno Deploy who want to promote a sandbox to an app. Ahead on Reliability, 48 against 27; Schema & documentation, 66 against 57; Security & auth, 61 against 49.

| Category | Agent 37 Cloud | Deno Sandbox |
| --- | --- | --- |
| Reliability (16%) | 27 | 48 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 57 | 66 |
| Agent ergonomics (13%) | 60 | 60 |
| Security & auth (14%) | 49 | 61 |
| Payments & pricing (10%) | 20 | 20 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 65 | 45 |
| Transparency & trust (7%) | 56 | 58 |

| Fact (where they differ) | Agent 37 Cloud | Deno Sandbox |
| --- | --- | --- |
| Vendor | Agent 37 Inc. | Deno Land Inc. |
| Hosted endpoint | `https://api.agent37.com/v1` | no (local only) |
| Pricing | Pay per use | Paid |
| Licence | Proprietary service under Agent 37's terms of service. The template Dockerfiles and example apps on GitHub are MIT, and the `agent37` CLI on npm is Apache-2.0 | Proprietary service under the Deno Deploy terms and conditions. The `@deno/sandbox` and `deno-sandbox` SDKs are MIT |
| Read-only variant documented | no | yes |
| Last release | 2026-10-05 | 2026-07-22 |
| Terms last updated | 2026-08-04 | 2026-09-30 |
| Privacy policy last updated | 2026-09-01 | 2026-09-30 |
| Terms restrict benchmarking | not found in the text | yes |
| Terms or service can change without notice | not found in the text | yes |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 74 npm/wk | 6 stars, 2k npm/wk, 32k PyPI/wk |