# Claude Agent SDK vs Microsoft Agent Framework (slim)

> Microsoft Agent Framework scores 82.2 (A) on agent readiness against Claude Agent SDK's 72.1 (BB), and leads in 5 of 7 scored categories. Claude Agent SDK leads on agent ergonomics. Both do agent frameworks. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/claude-agent-sdk-vs-microsoft-agent-framework.md (~2,350 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/claude-agent-sdk-vs-microsoft-agent-framework.json · canonical https://www.anchorterminal.com/compare/claude-agent-sdk-vs-microsoft-agent-framework
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-08

Microsoft Agent Framework scores 82.2 (A) on agent readiness against Claude Agent SDK's 72.1 (BB), and leads in 5 of 7 scored categories. Claude Agent SDK leads on agent ergonomics. Both do agent frameworks.

- Claude Agent SDK: BB 72.1, rank #96 of 722 · https://www.anchorterminal.com/tools/claude-agent-sdk.min.md
- Microsoft Agent Framework: A 82.2, rank #6 of 722 · https://www.anchorterminal.com/tools/microsoft-agent-framework.min.md
- Claude Agent SDK, good for Agents that work on files, code and shells and want Claude Code's tool set and permission model without building them. Ahead on Agent ergonomics, 94 against 87.
- Microsoft Agent Framework, good for Teams on Azure or .NET, and for teams moving off AutoGen or Semantic Kernel, that want MCP, approval, checkpointed workflows and OpenTelemetry in one SDK. Ahead on Reliability, 78 against 70; Schema & documentation, 95 against 89; Security & auth, 93 against 83; Payments & pricing, 60 against 40. Also No key needed to call it; Free to start without a card; Open source.

| Category | Claude Agent SDK | Microsoft Agent Framework |
| --- | --- | --- |
| Reliability (16%) | 70 | 78 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 89 | 95 |
| Agent ergonomics (13%) | 94 | 87 |
| Security & auth (14%) | 83 | 93 |
| Payments & pricing (10%) | 40 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 87 | 91 |
| Transparency & trust (7%) | 83 | 83 |

| Fact (where they differ) | Claude Agent SDK | Microsoft Agent Framework |
| --- | --- | --- |
| Vendor | Anthropic | Microsoft |
| Auth | API key | None |
| Licence | MIT (Python wrapper), proprietary (TypeScript package and the bundled Claude Code binary) | MIT |
| llms.txt | yes | no |
| Last release | 2026-09-30 | 2026-10-08 |
| Terms last updated | no date given | no document linked |
| Privacy policy last updated | no date given | no document linked |
| Customer content may train models | yes, with an opt-out |  |
| Terms restrict automated access | not found in the text |  |
| Terms restrict benchmarking | yes |  |
| Terms or service can change without notice | not found in the text |  |
| Arbitration or class-action waiver | yes |  |
| Popularity | 8.2k stars, 10.1M npm/wk, 6.1M PyPI/wk | 14k stars, 48k PyPI/wk |