SumOffice MCP server
OfficialClick on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@SumOffice MCP serverOpen the quarterly report and suggest edits to the sales summary."
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
SumOffice MCP server — real Word and Excel for agents
One server, two ways to run it. The agent opens your .docx / .xlsx / .xlsm, reads it, proposes a change, you approve, the file comes back intact — Excel and Word open the result without a repair dialog. Macros (VBA) and Power Query travel with the file.
Registry name: com.sumoffice/office · page with proof: https://sumoffice.com/mcp · image: docker.io/hissih/sumoffice-mcp
Remote — nothing to install
https://view.sumoffice.com/mcp (streamable HTTP).
claude mcp add --transport http sumoffice https://view.sumoffice.com/mcpClients without HTTP support: npx -y mcp-remote https://view.sumoffice.com/mcp (see examples/).
Related MCP server: Office-Word-MCP-Server
Local over stdio — local file paths
docker run -i --rm -v "$PWD:/work" hissih/sumoffice-mcpThe server runs on your machine and accepts path in document_open_file (paths under /work). The file itself is opened in a private, short-lived editor session on the SumOffice server and deleted after the session; nothing in the file is executed.
Tools
Documents (.docx) | Spreadsheets (.xlsx/.xlsm/.xlsb) | Both |
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propose_* never writes: it returns a diff for the person or the client to approve; *_apply applies exactly that proposal. Every step is listed in the response, so the agent cannot change a file silently.
Examples
examples/claude-desktop.json— Claude Desktop (claude_desktop_config.json), local stdio via Docker.examples/cursor-mcp.json— Cursor (.cursor/mcp.json), remote HTTP.examples/claude-code.sh— Claude Code, both variants.examples/docker-compose.yml— the local server as a compose service with a mounted folder.
What it does not do yet
One editor session per document at a time; a second agent on the same file gets read-only.
Power Query definitions are preserved, not refreshed, in the server session.
Macros are read and routed (which will run natively, which stay in Excel); they are not executed by the MCP server.
Limits and privacy
Free, no account. Remote: per-address daily quota; files are deleted after the session or 24 hours at most, never used for anything else. Details: https://sumoffice.com/app-privacy.html
Licence
This repository (documentation, manifest, examples) is MIT. The server image is free for evaluation and for use with the public endpoint; production use inside an organisation is licensed per application — https://sumoffice.com/download#server. Questions: hello@sumoffice.com
This server cannot be deployed
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