SumOffice MCP MCP server

An official MCP server provided by SumOffice that allows AI agents to open, read, and edit Word and Excel files (including macros and Power Query) without Microsoft Office. It enables agents to propose changes, apply them after approval, and retrieve the modified files as intact copies, ensuring the original documents remain untouched.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by SumOffice

MCP endpoint (Streamable HTTP)

https://view.sumoffice.com/mcp

Vendor documentation

What you can do with it

Open and read .docx or .xlsm files via URL or bytes
Read formulas, macros, and Power Query steps without execution
Propose and apply cell edits or paragraph replacements
Save edited files as copies or export to PDF

Tools advertised by the last live check:

document_open
document_open_file
document_describe
document_read
document_find
document_comments
document_propose_replacement
document_apply
sheet_describe
sheet_read
sheet_find
macro_list
macro_read_source
macro_plan
query_list
query_explain
workbook_inspect
sheet_propose_edits
sheet_apply
document_save_copy
document_export_pdf

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http sumoffice-mcp https://view.sumoffice.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add sumoffice-mcp --url https://view.sumoffice.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable sumoffice-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "sumoffice-mcp": {
      "url": "https://view.sumoffice.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.

Cline configuration

{
  "mcpServers": {
    "sumoffice-mcp": {
      "type": "streamableHttp",
      "url": "https://view.sumoffice.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start sumoffice-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "sumoffice-mcp": {
      "type": "http",
      "url": "https://view.sumoffice.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http sumoffice-mcp https://view.sumoffice.com/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "sumoffice-mcp": {
      "url": "https://view.sumoffice.com/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "sumoffice-mcp": {
      "serverUrl": "https://view.sumoffice.com/mcp"
    }
  }
}

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