# Freestyle vs Microsoft Execution Containers (slim)

> Microsoft Execution Containers scores 76.3 (BB) on agent readiness against Freestyle's 58.5 (C), and leads in 6 of 7 scored categories. Freestyle leads on schema & documentation. Both do sandbox code. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/freestyle-vs-microsoft-execution-containers.md (~2,700 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/freestyle-vs-microsoft-execution-containers.json · canonical https://www.anchorterminal.com/compare/freestyle-vs-microsoft-execution-containers
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Microsoft Execution Containers scores 76.3 (BB) on agent readiness against Freestyle's 58.5 (C), and leads in 6 of 7 scored categories. Freestyle leads on schema & documentation. Both do sandbox code.

- Freestyle: C 58.5, rank #520 of 842 · https://www.anchorterminal.com/tools/freestyle.min.md
- Microsoft Execution Containers: BB 76.3, rank #35 of 842 · https://www.anchorterminal.com/tools/microsoft-execution-containers.min.md
- Freestyle, good for Suited to long-running agent work that needs a full Linux VM, memory-preserving pause, snapshots to branch from and private networking. Ahead on Schema & documentation, 86 against 81. Also A hosted endpoint, with nothing to install.
- Microsoft Execution Containers, good for A developer building an agent or tool host that must run model-written code on the user's own machine, above all on Windows, where it reaches Microsoft's process and session isolation. Ahead on Reliability, 81 against 43; Agent ergonomics, 74 against 69; Security & auth, 69 against 53; Payments & pricing, 60 against 45; Maintenance & community, 92 against 71; Transparency & trust, 83 against 41. Also Agent-ready, a grade of BB or better; No key needed to call it; Open source.

| Category | Freestyle | Microsoft Execution Containers |
| --- | --- | --- |
| Reliability (16%) | 43 | 81 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 86 | 81 |
| Agent ergonomics (13%) | 69 | 74 |
| Security & auth (14%) | 53 | 69 |
| Payments & pricing (10%) | 45 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 71 | 92 |
| Transparency & trust (7%) | 41 | 83 |

| Fact (where they differ) | Freestyle | Microsoft Execution Containers |
| --- | --- | --- |
| Kind | HTTP API | SDK + MCP |
| Vendor | Freestyle Cloud Inc. | Microsoft |
| Hosted endpoint | `https://api.freestyle.sh/v5` | no (local only) |
| Transports | HTTP |  |
| Auth | API key | None |
| Pricing | Freemium | Free |
| Licence | Proprietary service with no published terms of service found. The `freestyle` SDK and CLI package on npm is MIT | MIT |
| Read-only variant documented | no | yes |
| llms.txt | yes | no |
| Last release | 2026-09-27 | 2026-10-06 |
| Privacy policy last updated | no document linked | couldn't be read |
| Popularity | 72k npm/wk | 1.5k stars, 472k npm/wk |