# Cloudflare Sandbox SDK vs Sprites (slim)

> Cloudflare Sandbox SDK scores 67.5 (B) on agent readiness against Sprites's 58.3 (C), and leads in 4 of 7 scored categories. Sprites leads on agent ergonomics and maintenance & community. Both do sandbox code. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-sprites.md (~2,650 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-sprites.json · canonical https://www.anchorterminal.com/compare/cloudflare-sandbox-sdk-vs-sprites
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Cloudflare Sandbox SDK scores 67.5 (B) on agent readiness against Sprites's 58.3 (C), and leads in 4 of 7 scored categories. Sprites leads on agent ergonomics and maintenance & community. Both do sandbox code.

- Cloudflare Sandbox SDK: B 67.5, rank #231 of 842 · https://www.anchorterminal.com/tools/cloudflare-sandbox-sdk.min.md
- Sprites: C 58.3, rank #528 of 842 · https://www.anchorterminal.com/tools/sprites.min.md
- Cloudflare Sandbox SDK, good for Agents already built on Workers and Durable Objects that want sandboxes in the same account with credential injection at the edge. Ahead on Reliability, 87 against 55; Security & auth, 65 against 59; Transparency & trust, 70 against 59. Also No key needed to call it; Open source.
- Sprites, good for Agents that need a long-lived machine with installed tools and files kept between sessions, and rollback by checkpoint. Ahead on Agent ergonomics, 68 against 63; Maintenance & community, 80 against 70.

| Category | Cloudflare Sandbox SDK | Sprites |
| --- | --- | --- |
| Reliability (16%) | 87 | 55 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 77 | 74 |
| Agent ergonomics (13%) | 63 | 68 |
| Security & auth (14%) | 65 | 59 |
| Payments & pricing (10%) | 30 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 70 | 80 |
| Transparency & trust (7%) | 70 | 59 |

| Fact (where they differ) | Cloudflare Sandbox SDK | Sprites |
| --- | --- | --- |
| Kind | SDK + MCP | HTTP API |
| Vendor | Cloudflare | Fly.io |
| Transports |  | HTTP |
| Auth | None | API key |
| Pricing | Paid | Pay per use |
| Licence | Apache-2.0 | Proprietary service under the Fly.io Terms of Service. The JavaScript, Go, Python and Elixir SDKs are MIT |
| Read-only variant documented | no | yes |
| Last release | 2026-09-30 | 2026-10-06 |
| Terms last updated | 2025-09-12 | 2026-04-29 |
| Privacy policy last updated | no date given | 2026-09-24 |
| Terms restrict automated access | yes | not found in the text |
| Terms or service can change without notice | yes | not found in the text |
| Arbitration or class-action waiver | yes | not found in the text |
| Popularity | 1.1k stars, 723k npm/wk | 158k npm/wk, 59k PyPI/wk |
| Agent reviews | 3/5 (2) | none |