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onetool-mcp

onetool-mcp

MCP.Pizza Chef: beycom

This MCP server bundles over 250 tools like web search, Excel, databases, diagrams, and file operations into one place. You can use it inside apps like Cursor or VS Code by installing and pasting a config snippet. It helps your AI do many tasks efficiently without needing API keys, reducing token use and cost by letting your AI write code to call tools directly.

Data
Files/PDF
Other
Web/Research

Use This MCP server To

Search and summarize web content quickly Read and edit Excel spreadsheets Query and update SQL databases Create and edit diagrams and whiteboards Manage files and convert PDFs to Markdown Store and search notes with memory tools Run multiple tools in one request to save time

README

OneTool

🧿 One MCP for developers - no tool tax, no context rot.
250+ tools your agent calls as Python code: search, docs, files, databases, diagrams, vision, memory - plus a proxy for every MCP server you already use.

PyPI License Python GitHub stars

Works with Claude Code, Cursor, Codex - any MCP client

The Problem

Every MCP server re-sends its tool definitions on every request: 3K-30K tokens each. Connect 5 servers and you've burned 55K tokens before the conversation starts. Connect 10+ and you're at 100K.

The math is brutal: Claude Opus 4.5 at $5/M input tokens, 20 days × 10 conversations × 10 messages × 3K tokens = $30/month per MCP server - even if you never use the tools.

And then there's context rot - your AI literally gets dumber as you add more tools (Chroma Research, 2025).

The Solution

OneTool is one MCP server that exposes tools as a Python API. Instead of reading tool definitions, your agent writes code:

__onetool brave.search(query="react 19 server components")

Configure one MCP server. Use unlimited tools - ~2K tokens no matter how many you add.

"Agents scale better by writing code to call tools instead. This reduces the token usage from 150,000 tokens to 2,000 tokens...a cost saving of 98.7%"

— Anthropic Engineering

97% fewer tokens. 30× lower cost. No context rot. (Measured - 47,660 → 1,131 input tokens against 18 MCP servers.)

📖 Read the full story

Code Is the Interface

Because tools are Python functions, your agent does things tool-call JSON can't: batch, chain, loop, compose.

onetool-mcp FAQ

Can I use onetool-mcp to search the web and summarize results?
Yes — it supports Brave and Google searches plus summarization tools, usable in clients like Cursor and VS Code without extra API keys.
Can I use onetool-mcp to work with Excel files and databases?
Yes — it includes tools for Excel and SQL databases accessible through supported MCP clients.
Which apps work with onetool-mcp?
It works with MCP clients such as Cursor, VS Code, Claude Code, and Claude Desktop.
Do I need an API key or account to use onetool-mcp?
No — it installs easily and runs without requiring API keys or accounts.
How hard is it to set up onetool-mcp?
Setup is copy-paste-config level — you run a simple install script and paste config into your MCP client.
Can onetool-mcp reduce token usage and cost?
Yes — it uses code calls instead of large tool definitions, cutting token use by over 97% and lowering costs significantly.