Draw.io MCP vs Excel MCP
Both are files & office documents MCP servers, and we ran both through the same test (write read back) in each app. Draw.io MCP passed 4 of 4 apps we tested it in; Excel MCP passed 3 of 4.
Test results side by side
| Draw.io MCP | Excel MCP | |
|---|---|---|
| Claude Code | Passed 2026-10-13 | Passed 2026-10-21 |
| Cursor | Passed 2026-10-13 | Passed 2026-10-21 |
| Claude Desktop | Passed 2026-10-14 | Passed 2026-10-14 |
| ChatGPT (Codex) | Passed 2026-10-14 | Failed 2026-10-21 |
| Tools exposed (protocol check) | 30 tools | 42 tools |
| GitHub stars | 1,482 | 4,241 |
| License | MIT | MIT |
| Last push | 2026-10-13 | 2026-10-10 |
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
Draw.io MCP: Create and edit draw.io diagrams from the agent.
Excel MCP: Create, read and edit Excel workbooks (sheets, formulas, charts) without Excel installed.
