Microsoft Learn MCP vs MDN MCP (experimental)
Both are up-to-date docs for coding MCP servers, and we ran both through the same test (mdn docs fact, ms docs fact) in each app. Microsoft Learn MCP passed 3 of 3 apps we tested it in; MDN MCP (experimental) passed 3 of 3.
Test results side by side
| Microsoft Learn MCP | MDN MCP (experimental) | |
|---|---|---|
| Claude Code | Passed 2026-10-22 | Passed 2026-10-23 |
| Cursor | Passed 2026-10-22 | Passed 2026-10-23 |
| Claude Desktop | Not tested yet | Not tested yet |
| ChatGPT (Codex) | Passed 2026-10-22 | Passed 2026-10-23 |
| Tools exposed (protocol check) | 3 tools | 3 tools |
| GitHub stars | 1,951 | 192 |
| License | CC-BY-4.0 | MPL-2.0 |
| Last push | 2026-10-17 | 2026-10-21 |
Results from our own harness runs, dated per cell. Stars and last push from GitHub at our last data refresh. We don’t pick a winner here: which one fits depends on your app and setup.
What each does
Microsoft Learn MCP: Official remote MCP server that lets agents search and read current Microsoft Learn documentation and code samples (Azure, .NET, Microsoft 365 and more). Free, no API key.
MDN MCP (experimental): MDN's experimental server for searching MDN docs and browser-compatibility data, so coding agents use current web platform facts. MDN says it logs queries while it's an experiment.
