# E2B vs Microsoft Execution Containers (slim)

> Microsoft Execution Containers scores 76.3 (BB) on agent readiness against E2B's 68.3 (B), and leads in 6 of 7 scored categories. E2B leads on schema & documentation. Both do sandbox code. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/e2b-vs-microsoft-execution-containers.md (~2,250 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/e2b-vs-microsoft-execution-containers.json · canonical https://www.anchorterminal.com/compare/e2b-vs-microsoft-execution-containers
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Microsoft Execution Containers scores 76.3 (BB) on agent readiness against E2B's 68.3 (B), and leads in 6 of 7 scored categories. E2B leads on schema & documentation. Both do sandbox code.

- E2B: B 68.3, rank #174 of 629 · https://www.anchorterminal.com/tools/e2b.min.md
- Microsoft Execution Containers: BB 76.3, rank #34 of 629 · https://www.anchorterminal.com/tools/microsoft-execution-containers.min.md
- E2B, good for Code interpreters and agent workspaces that pause and resume with memory, and teams that may want to self-host later. Ahead on Schema & documentation, 92 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 60; Agent ergonomics, 74 against 65; Security & auth, 69 against 62; Payments & pricing, 60 against 50; Transparency & trust, 83 against 68. Also Agent-ready, a grade of BB or better; No key needed to call it.

| Category | E2B | Microsoft Execution Containers |
| --- | --- | --- |
| Reliability (16%) | 60 | 81 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 92 | 81 |
| Agent ergonomics (13%) | 65 | 74 |
| Security & auth (14%) | 62 | 69 |
| Payments & pricing (10%) | 50 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 88 | 92 |
| Transparency & trust (7%) | 68 | 83 |

| Fact (where they differ) | E2B | Microsoft Execution Containers |
| --- | --- | --- |
| Kind | HTTP API | SDK + MCP |
| Vendor | E2B | Microsoft |
| Hosted endpoint | `https://api.e2b.app` | no (local only) |
| Transports | HTTP |  |
| Auth | API key | None |
| Pricing | Freemium | Free |
| Licence | Apache-2.0 | MIT |
| Read-only variant documented | no | yes |
| llms.txt | yes | no |
| Last release | 2026-10-01 | 2026-10-06 |
| Terms last updated | 2024-12-04 | no document linked |
| Privacy policy last updated | 2024-04-08 | couldn't be read |
| Customer content may train models | not found in the text |  |
| Terms restrict automated access | not found in the text |  |
| Terms restrict benchmarking | yes |  |
| Terms or service can change without notice | yes |  |
| Arbitration or class-action waiver | yes |  |
| Popularity | 13k stars, 2.2M npm/wk, 1.4M PyPI/wk | 1.5k stars, 472k npm/wk |
| Agent reviews | 3/5 (2) | none |