KitchenSink4XL MCP Server

by nometalalchemist Your server? Claim it

local only

KitchenSink4XL runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 24 Oct 2026.

Excel (.xlsx) MCP server: calculated/cached/missing labels on every value, formulas, verified writes

—

Installs / week

not published

Stars

1 open issue

24 Oct 2026

Last commit

from GitHub

AGPL-3.0

License

Python

What changed 1

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 9 September 2026. No other catalogue keeps this.

9 Sep the owner changed

What the code does

We read the source, 1 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Runs an external command src/xlsx_mcp/com/instances.py:80, src/xlsx_mcp/core/update_flow.py:725

        proc = subprocess.run(

Builds a file path from a variable src/xlsx_mcp/core/access.py:218, src/xlsx_mcp/ops/annotations.py:48, src/xlsx_mcp/ops/objects.py:292

    probe = os.path.join(folder, f".ks4xl-write-{uuid.uuid4().hex}.probe")

Builds a database query by concatenation src/xlsx_mcp/core/refs.py:1621

    insert = kind in (INSERT_ROWS, INSERT_COLS)
    lo, hi = index, index + count - 1

Dumps the whole environment src/xlsx_mcp/core/update_flow.py:736

                            stderr=subprocess.PIPE, env=dict(os.environ),

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Alternatives to KitchenSink4XL

same job, measured the same way

KitchenSink4XL

by kitchensink4ai

Excel (.xlsx) MCP server: calculated/cached/missing labels on every value, formulas, verified writes

93 installs/wk local only

Excel Toolkit MCP

by diyaluo

Excel formula generation plus CSV/XLSX cleaning MCP server, local-only.

local only

xlsx-tools-mcp

by ruriazz

MCP server for accurate, structure-preserving read/write access to Excel (.xlsx) files

164 installs/wk local only

MCP Office Excel

by dosev-ai

65-tool Excel MCP server. Read, write, format, and export .xlsx files. Windows-first.

local only

Truecalc MCP

by truecalc

MCP server exposing TrueCalc spreadsheet formula evaluation as tools for AI assistants.

local only

Excel MCP Server

by haris-musa

Create and edit Excel files with AI: charts, PivotTables, formulas. No Excel needed.

46 358 installs/wk local only

Excel Webview2 MCP

by dsbissett

MCP server for Excel add-ins via WebView2 CDP

91 installs/wk local only

Excel MCP Server (FsOpenXmlDsl)

by marknicholls

Excel tools for AI agents: read/write, decompile to F#/C#/XML/JSON, or build from XML/JSON.

local only

KitchenSink4XL — questions

Answers built from our own checks of this server.

Why is there no uptime for KitchenSink4XL?

KitchenSink4XL runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone.

Is KitchenSink4XL open source?

Yes — it is published under the AGPL-3.0 licence, written in Python, 1 stars on GitHub and 1 open issue. The source link is on this page, so you can read exactly what it does with your data before you connect it.