Real Word and Excel for agents: open your .docx/.xlsm, read, propose, apply, get it back intact.
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
https://view.sumoffice.com/mcp (streamable HTTP).
claude mcp add --transport http sumoffice https://view.sumoffice.com/mcp
Clients without HTTP support: npx -y mcp-remote https://view.sumoffice.com/mcp (see examples/).
docker run -i --rm -v "$PWD:/work" hissih/sumoffice-mcp
The 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.
| Documents (.docx) | Spreadsheets (.xlsx/.xlsm/.xlsb) | Both |
|---|---|---|
document_open_file, document_open, document_describe, document_read, document_find, document_comments, document_propose_replacement → document_apply | sheet_describe, sheet_read, sheet_find, sheet_propose_edits → sheet_apply, macro_list, macro_read_source, macro_plan, query_list, query_explain, workbook_inspect | document_save_copy, document_export_pdf |
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/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.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
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
Source-derived launch command. Check the maintainer’s required arguments and credentials before running:
docker run -i --rm docker.io/hissih/sumoffice-mcp:0.3.1Merge this template into ~/Library/Application Support/Claude/claude_desktop_config.json. Keep existing servers. Add any arguments, credentials, and permissions required by the maintainer; this template has not been install-tested.
{
"mcpServers": {
"com-sumoffice-office": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"docker.io/hissih/sumoffice-mcp:0.3.1"
]
}
}
}Restart Claude Desktop completely for changes to take effect. Confirm the server appears connected in the client’s tool list, then try a read-only example from its documentation.
Claude Desktop setup referencedocker.io/hissih/sumoffice-mcp:0.3.1dockerSumOffice — real Word and Excel for agents works with any MCP-compatible client. Copy the config snippet from the Configuration section above and add it to the file shown for your client, then restart the application.
~/Library/Application Support/Claude/claude_desktop_config.jsonRestart Claude Desktop completely for changes to take effect.~/.cursor/mcp.jsonRestart Cursor for changes to take effect..vscode/mcp.jsonReload VS Code window for changes to take effect.~/.codeium/windsurf/mcp_config.jsonRestart Windsurf for changes to take effect..mcp.jsonSave at the project root, then start Claude Code in that project and review the MCP server approval prompt. Keep real credentials out of shared files.