MCP servers for Claude Code · Files & office documents
Best files & office documents MCP server for Claude Code, tested
In ToolPassed's hands-on tests in Claude Code, Filesystem (reference) is our provisional candidate for files & office documents: it passed install, connect, tools and an agent task on 2026-10-19. We ran 5 files & office documents MCP servers in Claude Code; 4 passed every step; not a pass: draw.io MCP (official) (partial).
Last tested · runs from 2026-10-13 to 2026-10-22 · one run per server · How we test
Results in Claude Code
| Server | Claude Code |
|---|---|
| Filesystem (reference) Files & office documents | Passed 2026-10-19 · install, connect, tools, agent task |
| Excel MCP Files & office documents | Passed 2026-10-21 · install, connect, tools, agent task |
| Draw.io MCP Files & office documents | Passed 2026-10-13 · install, connect, tools, agent task |
| SEAL (sealnet-mcp) Files & office documents | Passed 2026-10-22 · install, connect, tools, agent task |
| draw.io MCP (official) Files & office documents | Partial 2026-10-15 · verified connected, install; agent task not run |
Dated results
- Filesystem (reference) passed in Claude Code on 2026-10-19 (Claude Code 2.1.296, @modelcontextprotocol/server-filesystem 2.0.0 (pinned in the command we ran), connect time not recorded). Full result
- Excel MCP passed in Claude Code on 2026-10-21 (Claude Code 2.1.296, excel-mcp-server 2.2.2, connected in 2.6s). Full result
- Draw.io MCP passed in Claude Code on 2026-10-13 (Claude Code 2.1.296, server reported v1.0.0, connect time not recorded). Full result
- SEAL (sealnet-mcp) passed in Claude Code on 2026-10-22 (Claude Code 2.1.296, sealnet-mcp 0.10.0, connected in 3.2s). Full result
- draw.io MCP (official) partial in Claude Code on 2026-10-15 (Claude Code 2.1.296, server reported v1.7.0, connect time not recorded). Full result
Why Filesystem (reference) is the candidate
Filesystem (reference) passed every step in Claude Code. It is the group’s site-wide candidate (judged 2026-10-22): Wrote a fresh code to a file and read it back in every client we test (Claude Code, Cursor, Claude Desktop and ChatGPT (Codex)), and the second runs in Claude Code, Cursor and ChatGPT (Codex) passed again. In Claude Code it needed the test folder added to permissions.additionalDirectories. Draw.io also passed in all 4 clients (one run each) but only with its editor open in a browser. Excel was the earlier pick: it passed twice in Claude Code and Cursor, but its second ChatGPT (Codex) run failed on Oct 21, 2026, so by judging rule 1 it now ranks below both.
Provisional: based on one dated run per app (no repeat runs yet), so treat it as a candidate, not a final pick. How we test.
Same servers in all 4 apps
| Server | Claude Code | Cursor | Claude Desktop | ChatGPT (Codex) |
|---|---|---|---|---|
| Filesystem (reference) Files & office documents | Passed 2026-10-19 · install, connect, tools, agent task | Passed 2026-10-19 · install, connect, tools, agent task | Passed 2026-10-14 · install, connect, tools, agent task | Passed 2026-10-20 · install, connect, tools, agent task |
| Excel MCP Files & office documents | Passed 2026-10-21 · install, connect, tools, agent task | Passed 2026-10-21 · install, connect, tools, agent task | Passed 2026-10-14 · install, connect, tools, agent task | Failed 2026-10-21 · agent task failed (file not created: /workspace/timmy/harness/sandbox/office/out-codex.xlsx) |
| Draw.io MCP Files & office documents | Passed 2026-10-13 · install, connect, tools, agent task | Passed 2026-10-13 · install, connect, tools, agent task | Passed 2026-10-14 · install, connect, tools, agent task | Passed 2026-10-14 · install, connect, tools, agent task |
| SEAL (sealnet-mcp) Files & office documents | Passed 2026-10-22 · install, connect, tools, agent task | Passed 2026-10-22 · install, connect, tools, agent task | Not tested yet | Passed 2026-10-22 · install, connect, tools, agent task |
| draw.io MCP (official) Files & office documents | Partial 2026-10-15 · verified connected, install; agent task not run | Partial 2026-10-15 · verified connected, install, tools visible; agent task not run | Passed 2026-10-21 · install, connect, tools, agent task | Passed 2026-10-21 · install, connect, tools, agent task |
What failed or is partial in Claude Code
None of these servers failed in Claude Code.
Partial: draw.io MCP (official). Some steps verified; this is not a pass.
Install in Claude Code
The exact snippet we tested is on the Filesystem (reference) page (pick the Claude Code tab). Not connecting? Claude Code MCP troubleshooting.
Not tested in Claude Code yet
Docling MCP, OpenTakeoff, Next AI Draw.io, Framelink Figma MCP, Markdownify MCP, Melso MCP, DropHTML, Excel MCP Server (real Excel on Windows). Listed from their source; no result in Claude Code yet.
Questions
What is the best files & office documents MCP server for Claude Code?
In ToolPassed's hands-on tests in Claude Code, Filesystem (reference) is our provisional candidate for files & office documents: it passed install, connect, tools and an agent task on 2026-10-19. We ran 5 files & office documents MCP servers in Claude Code; 4 passed every step; not a pass: draw.io MCP (official) (partial).
Does Filesystem (reference) work with Claude Code?
Filesystem (reference) passed in Claude Code on 2026-10-19 (Claude Code 2.1.296, @modelcontextprotocol/server-filesystem 2.0.0 (pinned in the command we ran), connect time not recorded).
More: all MCP servers tested in Claude Code · Files & office documents in every app · How we test
