Does Draw.io MCP work with Claude Code?
Yes. Draw.io MCP passed every step of our test in Claude Code on Oct 13, 2026: it installed, connected, its tools were visible, and an agent used it to finish a real task.
Result
ResultPassed
Date testedOct 13, 2026
Plan tested onClaude Pro
App version2.1.296 (Claude Code)
Modelhaiku
Steps
- install OK
- connected OK
- tools visible OK
- agent task: write read back OKcreate a document with known content, then read it back
From our own harness run, not the maker’s claims. How we test.
What happened in this run
Install config we used
claude mcp add -s local drawio -e PATH=/home/box/opt/node22/bin:/usr/local/bin:/usr/bin:/bin -- /home/box/opt/node22/bin/npx -y drawio-mcp-server --editor --http-port 3311Connection check
drawio: /home/box/opt/node22/bin/npx -y drawio-mcp-server --editor --http-port 3311 - ✔ ConnectedTools check
verified via task step: agent saw and called the server's tools
Agent task: write read back
- Tool calls, in order:
mcp__drawio__list-documents,mcp__drawio__add-rectangle,mcp__drawio__export-diagram
Raw details from our harness log for this run. Secrets redacted.
Set it up in Claude Code
Copy-paste config for every app is on the Draw.io MCP page. Not connecting? Claude Code MCP troubleshooting.
Other apps we tested it in: Cursor (passed) · Claude Desktop (passed) · ChatGPT (Codex) (passed).