mcptoon

Name: mcptoon
Author: activeing123

by activeing123version 0.8.40i★ 430iRuns on your computer

Registry nameio.github.activeing123/mcptoon

How to install

What it does

MCP tools + agent skills in one zero-dependency CLI: 71,929 -> 581 tokens (-99.2%, measured).

Connects Runs on your computer
Account or key No key needed
Category Developer tools

Install

Pick the AI app you use, then copy the settings.

Passed 3/3 checks · Runs on your computer · ✓ Commands checked Nov 13, 2026

First: which AI do you use?

ClaudeWeb · app · phoneChatGPTWebClaude CodeTerminalCursorCode editorVS CodeCode editorOtherOther apps

Pick your app and the steps appear below.

Works with Claude, with some setup first

Install Python (uv) on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone

Install Python (uv)
One time only; it works for every server that needs Python (uv)
Open the Python (uv) download page ↗
Done
Open the Claude desktop app’s settings file
SettingsDeveloperEdit Config
Done

Paste these settings and save the file

{
  "mcpServers": {
    "mcptoon": {
      "command": "uvx",
      "args": [
        "mcptoon"
      ]
    }
  }
}

Done

Quit Claude and open it again
Done
Try it
Use mcptoon and tell me what you can do for me, then show me one thing
✓ If Claude says it is using mcptoon or shows a mcptoon tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

ChatGPT cannot connect mcptoon yet

mcptoon runs on your computer, but ChatGPT can only connect servers that run on the web

What you can do instead

A · Use an app that can connect mcptoon

Steps for Claude →Install Python (uv) on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
Steps for Claude Code →Install Python (uv) on your computer first (one time)
Steps for Cursor →Install Python (uv) on your computer first (one time)
Steps for VS Code →Install Python (uv) on your computer first (one time)

B · Others in Developer tools that work with ChatGPT

Picked from the most used in the same category, only ones that connect by address with no key

Sentry✓ ChatGPT
Compiler Explorer✓ ChatGPT
GitDiagram✓ ChatGPT

Works with Claude Code, with some setup first

Install Python (uv) on your computer first (one time)

Install Python (uv)
One time only; it works for every server that needs Python (uv)
Open the Python (uv) download page ↗
Done
Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Done

Paste this command and press Enter

claude mcp add --scope user mcptoon -- uvx mcptoon

Done

Type /mcp in Claude Code
You should see mcptoon listed as connected
Done
Try it
Use mcptoon and tell me what you can do for me, then show me one thing
✓ If Claude Code says it is using mcptoon or shows a mcptoon tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor, with some setup first

Install Python (uv) on your computer first (one time)

Install Python (uv)
One time only; it works for every server that needs Python (uv)
Open the Python (uv) download page ↗
Done
Click this button to open Cursor
Open in Cursor
Cursor asks you to confirm; click Install
Done
Open the AI chat in Cursor in Agent mode
Done
Try it
Use mcptoon and tell me what you can do for me, then show me one thing
✓ If Cursor says it is using mcptoon or shows a mcptoon tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code, with some setup first

Install Python (uv) on your computer first (one time)

Install Python (uv)
One time only; it works for every server that needs Python (uv)
Open the Python (uv) download page ↗
Done
Click this button to open VS Code
Open in VS Code
VS Code asks you to confirm; click Install
Done
Open the AI chat in VS Code in Agent mode
Done
Try it
Use mcptoon and tell me what you can do for me, then show me one thing
✓ If VS Code says it is using mcptoon or shows a mcptoon tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

JSON settings are under “For developers” below

Stuck? Ask people who use mcptoon💬 Discussion →

For developers: Terminal commands and JSON settings

Installed on your computer

Claude Code

claude mcp add --scope user mcptoon -- uvx mcptoon

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "mcptoon": {
      "command": "uvx",
      "args": [
        "mcptoon"
      ]
    }
  }
}

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "mcptoon": {
      "command": "uvx",
      "args": [
        "mcptoon"
      ]
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "mcptoon": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mcptoon"
      ]
    }
  }
}

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

At a glance

GitHub stars i: 430
Downloads per weeki: 299/wk
Licence i: Apache-2.0
Connection: Runs on your computer
Transport: stdio
Latest versioni: 0.8.40
Categoryi: Developer tools
Published to registryi: Nov 13, 2026
Code last changedi: Nov 13, 2026
Maker: activeing123
Packages: pypi: mcptoon
Repo: activeing123/mcptoon
Website: mcptoon.github.io
Registry status: Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Run on your computer in

Claude Goose LM Studio Msty Studio Cherry Studio Cursor VS Code + GitHub Copilot Visual Studio Windsurf (Devin Desktop)Zed Kiro Cline Continue JetBrains AI Assistant Claude Code Codex CLI Gemini CLI OpenCode nodecode Warp LibreChat Raycast

All apps, with pros and cons →

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 14, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account activeing123, which owns the repo
✓ Pass
Still maintained
Code last changed yesterday
✓ Pass
Has a licence
Uses Apache-2.0
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

User reviews

No reviews yet

Compared with others in Developer toolsi

More stars than 98% of the other 5890 servers in this category
Published to the registry more recently than 95% of the other 5890 servers in this category
Basic checks equal to or better than 100% of the other 5890 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is mcptoon safe?

It passed 3 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed yesterday, and the latest version (0.8.40) reached the registry yesterday.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.

What can I use instead?

In the same category: REA, GitHub, Serena MCP: the IDE for your agent

Others in the same category

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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GitHub

GitHub’s official server lets AI read and manage code, issues and pull requests in your account. Use GitHub’s hosted version or run it locally with Docker.

by githubWidely used★ 34.4KUpdated 11 days ago

Computer or cloud

Install

Serena MCP: the IDE for your agent

A powerful toolkit for coding, providing semantic retrieval and editing capabilities.

by oraiosWidely used↓ 35.2K/wk★ 31.4KUpdated 6 months ago

Runs on your computer

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

One Place for All Your Agents' MCP Tools and Skills.

Install 1,000 skills and 1,000 MCP tools locally — and never worry about context flooding.

Tools and skills configured in any single agent just work across Cursor, Claude Code, Codex, and 103+ desktop & terminal agents.

Pioneering on-demand schema retrieval out of the box — no more stuffing context windows, saving 99% context tokens .

Zero dependencies, pure local, offline-first.

If this saves you tokens, please star the repo — it helps other builders discover it.

🌐 Official Website · 🧮 30s Token Tax Calculator · 🇨🇳 中文文档 · 📖 Developer Docs

Skeptical of a synthetic 255-tool sample? Here are 7 real public MCP servers (209 tools) measured on a real machine → — 640,606 → 905 tokens (−99.86%). Or run mcptoon bench on your own catalog.

https://github.com/user-attachments/assets/0272d3a8-c74f-428d-8559-fbf804ce0685

① 💥 Tools, skills & docs eating your context — afraid to add more?

Add as many as you like. Tool schemas 72k → 581 tokens .

Tools −99.2% · Skills −99.99% · Docs 40k→17k per question

② 🧩 Several agents — JSON configs and skills both a chore?

It's a native CLI : any agent that can run a shell command gets every feature — no MCP server, no config. sync covers the GUI clients too ( 103+ ).

No JSON editing, no restart

③ 🔍 Overwhelmed by thousands of MCP tools across the web?

No more hunting for install docs. It first scans and takes over the tools you already have , then finds the rest by plain language — install and call on the spot.

mcptoon discover (scan installed) → search (find online) → call (run directly)

Also: OpenAPI / GraphQL passthrough · OAuth · MCP resources & prompts · saved connections · code sandbox — see All commands .

pip install mcptoon && mcptoon quickstart — 565KB, zero dependencies, zero config.

Stays current on its own: it tells you when a newer version is out, and mcptoon upgrade updates in one command.

🔍 Common Pain Points & Solutions at a Glance (Click to expand)

Your Pain Point / Search Intent Vanilla MCP Behavior mcptoon's Solution Context Window Bloat Adding 10+ tools quickly hits context limits Sends full JSON Schema of every tool every turn (70k+ tokens) Compact Name Index : ~2.2 tokens/tool on idle, schemas fetched on demand (99.2% token saving) Multi-Agent Sync Hell Rewriting mcpServers JSON for Cursor, Claude Code, Windsurf Manual copy-pasting into each client's config file One-Command Takeover : mcptoon sync --takeover automatically discovers and configures 103+ clients Headless CLI Execution Need to call/test MCP tools directly in terminal/scripts Requires spinning up full desktop agents or writing client code Native Standard Library CLI : mcptoon call <server> <tool> with zero dependencies Model Confusion & Hallucination Too many candidate tools dilute model attention Floods model with dozens of complex schemas simultaneously Two-Stage Selection : mcptoon select "<task>" pre-filters to the top 3 tools offline Agent Skills Fragmentation Prompt instructions & skills can't be shared across agents Manually duplicated across folders, drifting out of sync Symlink-based Single-Source Hub : mcptoon skills sync , 39-token pointer, zero duplication

🚀 Quick Start (Choose Your Way)

🤖 Modern Way: Just Talk to Your Agent (Zero Memorization)

When installed, mcptoon automatically injects its own official skill (`/mcptoon`) into your agents. You never need to memorize terminal commands — just ask directly in Cursor, Claude Code, Windsurf, or DSH:

# Ask the built-in skill anytime:

"Load /mcptoon skill and check what MCP tools I currently have." "Help me find an MCP tool that converts HTML to PDF and call it." "The tool output was truncated, retrieve the full original copy." "How many tokens did mcptoon save for me today?" "Doctor self-check: are all my MCP servers connected properly?"

*Your agent loads `/mcptoon` and drives everything behind the scenes!*

⚡ Terminal Way: 30-Second Setup

# 1. Install (zero dependencies, 565KB)

pip install mcptoon

2. One command: detect MCP servers & auto-configure agents

(Also self-installs `/mcptoon` skill into all detected agents)

mcptoon quickstart

3. View compact tool catalog (-99.2% tokens)

mcptoon manifest

4. Route tasks to skills or doc chapters (<5ms)

mcptoon skills resolve "write git commit message" mcptoon docs resolve "how does release gating work"

Is it actually saving you anything? After a fresh install mcptoon can sit in direct mode — installed but not wired into the agent — and save nothing. See Which mode is cheapest?, or just run mcptoon mode.

⚡ Core Capabilities at a Glance

💥 Save context (why ①)	🧩 One config, every agent (why ②)

| • ✅ Compact name index (−99.2%): 255 tools → 581 tokens, full schema fetched on demand • ✅ Lossless result compression: reversible, retrieve the original behind any handle • ✅ Session dedup: byte-identical output in one turn becomes a reference • ✅ Skills the same way: one 39-token pointer + one lookup replaces every SKILL.md • ✅ Docs too: docs feeds 1 chapter, not 19 — 40k → 17k tokens per question • ✅ Honest numbers: real tiktoken accounting via mcptoon bench | • ✅ Native CLI: any shell-capable agent runs mcptoon and gets every feature — no MCP server, no config • ✅ GUI clients too: sync writes the JSON for Claude, Cursor, Cline, Windsurf, VS Code, Claude Code — 6 here, 103+ supported • ✅ Verified list: 42 clients run the CLI directly, 61 mount one mcptoon serve entry • ✅ Skills too: one catalog distributed to every agent's folder (skills sync) • ✅ Import what you have: pull servers from Claude / Cursor / Cline / Windsurf • ✅ One-command setup: quickstart = discover + configure + show tools • ✅ Fine control: toggle on/off, policy sets each tool's output tier, --version-gate / --tombstone for skills |

🔍 Find & call (why ③)	🔌 Drive any API, not just MCP

| • ✅ Cross-registry search: plain-language search across 17,000+ MCP servers • ✅ Discover what's already installed: discover scans existing client configs — nothing to reinstall • ✅ Call anything: call headless, or call --auto to auto-find the server • ✅ On-demand schema: inspect only when a tool is actually used • ✅ Pick for a task: select " " returns just the top few • ✅ Export anywhere: manifest --format openai\|openapi\|mcp | • ✅ OpenAPI / Swagger: any REST API as commands (openapi list\|call) • ✅ GraphQL: any endpoint as commands (graphql list\|call) • ✅ OAuth built in: PKCE login, client-credentials, Dynamic Client Registration • ✅ MCP resources & prompts: resources, prompts, complete • ✅ Saved connections: bake — secrets by reference only (env: / file:) • ✅ Code sandbox: exec — only stdout enters context |

🛡️ Safe, small, private	📚 Docs & doctor

| • ✅ Zero dependencies: pure standard library, pyproject.toml clean • ✅ 565KB, installs in 2s • ✅ 100% local & private: no cloud, no teleme

Only the beginning is shown; read the rest in the repo

mcptoon

What it does

Install

Install Python (uv)

Open the Claude desktop app’s settings file

Paste these settings and save the file

Quit Claude and open it again

Try it

What you can do instead

Install Python (uv)

Open Terminal

Paste this command and press Enter

Type /mcp in Claude Code

Try it

Install Python (uv)

Click this button to open Cursor

Open the AI chat in Cursor in Agent mode

Try it

Install Python (uv)

Click this button to open VS Code

Open the AI chat in VS Code in Agent mode

Try it

Installed on your computer

At a glance

Which apps can use it

Related guides

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Discussion

User reviews

Compared with others in Developer toolsi

Common questions

Others in the same category

REA

GitHub

Serena MCP: the IDE for your agent

README from the maker

🚀 Quick Start (Choose Your Way)

2. One command: detect MCP servers & auto-configure agents

(Also self-installs /mcptoon skill into all detected agents)

3. View compact tool catalog (-99.2% tokens)

4. Route tasks to skills or doc chapters (<5ms)

⚡ Core Capabilities at a Glance

(Also self-installs `/mcptoon` skill into all detected agents)