Excel MCP vs draw.io MCP (official)
Both are files & office documents MCP servers, and we ran both through the same test (diagram reference, write read back) in each app. Excel MCP passed 3 of 4 apps we tested it in; draw.io MCP (official) passed 2 of 4.
Test results side by side
| Excel MCP | draw.io MCP (official) | |
|---|---|---|
| Claude Code | Passed 2026-10-21 | Partial 2026-10-15 |
| Cursor | Passed 2026-10-21 | Partial 2026-10-15 |
| Claude Desktop | Passed 2026-10-14 | Passed 2026-10-21 |
| ChatGPT (Codex) | Failed 2026-10-21 | Passed 2026-10-21 |
| Tools exposed (protocol check) | 42 tools | 8 tools |
| GitHub stars | 4,241 | 5,642 |
| License | MIT | Apache-2.0 |
| Last push | 2026-10-10 | 2026-10-13 |
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
Excel MCP: Create, read and edit Excel workbooks (sheets, formulas, charts) without Excel installed.
draw.io MCP (official): The draw.io team's own MCP for opening diagrams (XML, CSV, Mermaid) and reading draw.io shape/reference docs.
