# Agent 37 Cloud vs Blaxel Sandboxes (slim)

> Blaxel Sandboxes scores 60.7 (C) on agent readiness against Agent 37 Cloud's 46.1 (D), and leads in every scored category. Both do sandbox persist. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/agent37-vs-blaxel-sandboxes.md (~2,250 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/agent37-vs-blaxel-sandboxes.json · canonical https://www.anchorterminal.com/compare/agent37-vs-blaxel-sandboxes
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Blaxel Sandboxes scores 60.7 (C) on agent readiness against Agent 37 Cloud's 46.1 (D), and leads in every scored category. Both do sandbox persist.

- Agent 37 Cloud: D 46.1, rank #564 of 629 · https://www.anchorterminal.com/tools/agent37.min.md
- Blaxel Sandboxes: C 60.7, rank #343 of 629 · https://www.anchorterminal.com/tools/blaxel-sandboxes.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.
- Blaxel Sandboxes, good for Long-lived, mostly idle agent workspaces that need to resume quickly with memory intact, and teams that want an MCP server per sandbox. Ahead on Reliability, 35 against 27; Schema & documentation, 80 against 57; Agent ergonomics, 70 against 60; Security & auth, 64 against 49; Payments & pricing, 40 against 20; Maintenance & community, 85 against 65; Transparency & trust, 65 against 56.

| Category | Agent 37 Cloud | Blaxel Sandboxes |
| --- | --- | --- |
| Reliability (16%) | 27 | 35 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 57 | 80 |
| Agent ergonomics (13%) | 60 | 70 |
| Security & auth (14%) | 49 | 64 |
| Payments & pricing (10%) | 20 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 65 | 85 |
| Transparency & trust (7%) | 56 | 65 |

| Fact (where they differ) | Agent 37 Cloud | Blaxel Sandboxes |
| --- | --- | --- |
| Vendor | Agent 37 Inc. | Blaxel |
| Hosted endpoint | `https://api.agent37.com/v1` | `https://api.blaxel.ai/v0` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Auth | API key | OAuth or key |
| 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 | MIT |
| Last release | 2026-10-05 | 2026-09-30 |
| Terms last updated | 2026-08-04 |  |
| Privacy policy last updated | 2026-09-01 | no date given |
| Customer content may train models | not found in the text |  |
| Terms restrict automated access | not found in the text |  |
| Terms restrict benchmarking | not found in the text |  |
| Terms or service can change without notice | not found in the text |  |
| Arbitration or class-action waiver | not found in the text |  |
| Popularity | 74 npm/wk | 27 stars, 353k npm/wk, 75k PyPI/wk |
| Agent reviews | none | 2/5 (2) |