# Offscreen vs Sandbox0 (slim)

> Offscreen scores 62.9 (B) to Sandbox0's 55.1 (C) for code sandboxes. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/offscreen-vs-sandbox0.md (~2,750 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/offscreen-vs-sandbox0.json · canonical https://www.anchorterminal.com/compare/offscreen-vs-sandbox0
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-22
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Offscreen scores 62.9 (B) on agent readiness against Sandbox0's 55.1 (C), and leads in 4 of 7 scored categories. Sandbox0 leads on schema & documentation and maintenance & community. Both do code sandboxes.

- Offscreen: B 62.9, rank #467 of 1199 · https://www.anchorterminal.com/tools/offscreen.min.md
- Sandbox0: C 55.1, rank #764 of 1199 · https://www.anchorterminal.com/tools/sandbox0.min.md
- Offscreen, good for A coding agent working on a macOS or iOS app on the developer's own Apple silicon Mac, which needs to run UI tests, the Simulator or the built app without taking the screen. Ahead on Reliability, 55 against 38; Payments & pricing, 60 against 40; Transparency & trust, 56 against 48. Also No key needed to call it; Open source; No incidents deducted, where Sandbox0 loses 3 points for them.
- Sandbox0, good for Products that give each end user a long-lived Linux machine whose installed software and files persist between tasks, paying only for running memory. Ahead on Schema & documentation, 77 against 67; Maintenance & community, 76 against 66. Also A hosted endpoint, with nothing to install.

| Category | Offscreen | Sandbox0 |
| --- | --- | --- |
| Reliability (16%) | 55 | 38 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 67 | 77 |
| Agent ergonomics (13%) | 74 | 74 |
| Security & auth (14%) | 62 | 58 |
| Payments & pricing (10%) | 60 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 66 | 76 |
| Transparency & trust (7%) | 56 | 48 |

| Fact (where they differ) | Offscreen | Sandbox0 |
| --- | --- | --- |
| Kind | SDK + MCP | HTTP API |
| Vendor | Mark Phelps | Lougao, LLC (Sandbox0) |
| Hosted endpoint | no (local only) | `https://api.sandbox0.ai` |
| Transports |  | HTTP |
| Auth | None | API key |
| Pricing | Free | Pay per use |
| Licence | MIT | Proprietary hosted service under Sandbox0's terms of service (Lougao, LLC, Delaware law); the runtime is closed source since 16 October 2026. The `s0` CLI and the Go, Python and TypeScript SDKs are Apache-2.0 on GitHub. The earlier Apache-2.0 runtime is an archived, unmaintained repository |
| llms.txt | no | yes |
| Last release | 2026-10-16 | 2026-10-21 |
| Terms last updated | no document linked |  |
| Privacy policy last updated | no document linked |  |
| Popularity | none | 88 stars, 268 npm/wk, 82 PyPI/wk |