Ohm MCP

Name: Ohm MCP
Author: Murugarajr

by Murugarajrversion 1.0.1i★ –iRuns on your computer

Registry nameio.github.Murugarajr/ohm-mcp

Install

Overview

Description from the maker (original English)

AST-based Python refactoring MCP server with safe automated refactorings and rollback

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Developer tools

Install

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

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "ohm": {
      "command": "npx",
      "args": [
        "-y",
        "ohm-mcp"
      ]
    }
  }
}

Run this in your terminal

claude mcp add ohm -- npx -y ohm-mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "ohm": {
      "command": "npx",
      "args": [
        "-y",
        "ohm-mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "ohm": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "ohm-mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

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

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 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account Murugarajr, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– 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

Compared with others in Developer toolsi

More stars than 0% of the other 4907 servers in this category
Published to the registry more recently than 3% of the other 4907 servers in this category
Basic checks equal to or better than 100% of the other 4907 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 Ohm MCP safe?

It passed 1 of 1 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 –, and the latest version (1.0.1) reached the registry 10 months ago.

Which apps can use it?

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

What can I use instead?

In the same category: GitHub, Desktop Commander, Cloudflare MCP

Alternatives

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

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by 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.

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Install

Desktop Commander

by wonderwhy-er

MCP server for terminal commands, file operations, and process management

Runs on your computer★ 10,225MITUpdated 16 days ago

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Cloudflare MCP

by cloudflare

Cloudflare MCP servers

Runs in the cloud★ 4,446Apache-2.0Updated 14 months ago

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.

OHM-MCP

AI-Powered Python Refactoring & Code Quality Assistant

Works with GitHub Copilot, Cursor IDE, Cline, and any MCP-compatible AI assistant.

✨ Core Capabilities

🏗️ Architecture

God Object Detection
SOLID Violation Analysis
Design Pattern Suggestions
Dependency Injection Refactoring

🔧 Code Quality

AST Extract Method (100% accurate)
Dead Code Elimination
Import Refactoring
Symbol Renaming (project-wide)
Duplication Detection

📊 Type Safety

Type Coverage Analysis
Type Stub Generation
Auto Test Generation

⚡ Performance

O(n²) Pattern Detection
Hotspot Analysis
Coverage-Driven Prioritization

🤖 Automation

Auto-Apply with Rollback
Operation History
Quality Dashboard

🚀 Quick Start

Installation

📦 Recommended: NPM Method (Auto-installs dependencies)

No installation required! Use NPX to run the latest version automatically:

npx -y ohm-mcp@latest

This is the easiest way to get started. Just add the configuration to your AI assistant (see IDE Configuration below).

MCP Registry: mcp-name: io.github.Murugarajr/ohm-mcp

🐍 Alternative: PyPI Method (For local development)

Use this method when you need to:

Develop locally with the Python package
Use a specific Python virtual environment
Install from source for customization

Install from PyPI:

pip install ohm-mcp

Install from source (for development):

pip install -e .

IDE Configuration

📦 Option 1: NPX (Recommended - Auto-installs dependencies)

🔵 GitHub Copilot (VS Code) with NPX

After publishing to npm:

"mcpServers": { "ohm-mcp": { "command": "npx", "args": ["ohm-mcp@latest"] } } }

For local development:

"mcpServers": { "ohm-mcp": { "command": "npx", "args": ["--package", "/path/to/ohm-mcp-npm", "ohm-mcp"] } } }

Usage:

Open Copilot Chat
Type # and select ohm-mcp tools
Ask: "Analyze this file and suggest refactorings"

🟣 Cursor IDE with NPX

Global (After publishing to npm):

"mcpServers": { "ohm-mcp": { "command": "npx", "args": ["-y", "ohm-mcp@latest"] } } }

For local development:

"mcpServers": { "ohm-mcp": { "command": "npx", "args": ["--package", "/path/to/ohm-mcp-npm", "ohm-mcp"] } } }

Usage:

Open Cursor Chat (Cmd+L / Ctrl+L)
Tools are automatically available
Ask: "Use ohm-mcp to detect dead code"

🟢 Cline (VS Code Extension) with NPX

Global (After publishing to npm):

"mcpServers": { "ohm-mcp": { "command": "npx", "args": ["-y", "ohm-mcp@latest"] } } }

For local development:

"mcpServers": { "ohm-mcp": { "command": "npx", "args": ["--package", "/path/to/ohm-mcp-npm", "ohm-mcp"] } } }

Usage:

Open Cline panel
Tools are available in agent context
Ask: "Analyze type coverage and suggest improvements"

🟠 Antigravity with NPX

Global (After publishing to npm):

"mcpServers": { "ohm-mcp": { "command": "npx", "args": ["-y", "ohm-mcp@latest"], "env": { "PYTHONUNBUFFERED": "1" } } } }

Usage:

Tools are automatically available in Antigravity
Ask: "Use ohm-mcp to analyze architecture"

🔴 Roo Code with NPX

Global (After publishing to npm):

"mcpServers": { "ohm-mcp": { "command": "npx", "args": ["-y", "ohm-mcp@latest"] } } }

Usage:

Open Roo Code panel
Tools are available in agent context
Ask: "Use ohm-mcp to detect duplicates"

⚫ Codex VS Code with NPX

Configuration (config.toml):

[mcp_servers.ohm-mcp]

args = ["-y", "ohm-mcp@latest"] command = "npx"

Usage:

Open Codex panel
Tools are automatically available
Ask: "Use ohm-mcp to suggest design patterns"

🟡 Kilo Code with NPX (Local/Global)

Local (For local development with virtual environment):

"mcpServers": { "ohm-mcp": { "command": "/Users/username/project/venv/bin/python", "args": ["-m", "ohm_mcp.server"], "disabled": false, "alwaysAllow": [] } } }

Global (After publishing to npm):

"mcpServers": { "ohm-mcp": { "command": "npx", "args": ["-y", "ohm-mcp@latest"] } } }

Usage:

Open Kilo Code panel
Tools are available in agent context
Ask: "Use ohm-mcp for refactoring"

🐍 Option 2: Direct Python (Manual setup)

🔵 GitHub Copilot (VS Code) with Python

First install: pip install ohm-mcp

Then add to .vscode/mcp.json:

"servers": { "ohm-mcp": { "command": "python", "args": ["-m", "ohm_mcp.server"] } }, "inputs": [] }

Usage:

Open Copilot Chat
Type # and select ohm-mcp tools
Ask: "Analyze this file and suggest refactorings"

🟣 Cursor IDE with Python

First install: pip install ohm-mcp

Then add to Cursor's MCP settings file (.cursorrules or MCP config):

"mcpServers": { "ohm-mcp": { "command": "python", "args": ["-m", "ohm_mcp.server"] } }, "inputs": [] }

Example with virtual environment:

"mcpServers": { "ohm-mcp": { "command": "/Users/username/projects/venv/bin/python", "args": ["-m", "ohm_mcp.server"] } } }

Usage:

Open Cursor Chat (Cmd+L / Ctrl+L)
Tools are automatically available
Ask: "Use ohm-mcp to detect dead code"

🟢 Cline (VS Code Extension) with Python

First install: pip install ohm-mcp

Then add to Cline's MCP settings:

"mcpServers": { "ohm-mcp": { "command": "python", "args": ["-m", "ohm_mcp.server"] } } }

Example with virtual environment:

"mcpServers": { "ohm-mcp": { "command": "/Users/username/projects/venv/bin/python", "args": ["-m", "ohm_mcp.server"] } } }

Note: Cline requires absolute paths for both command and cwd.

Usage:

Open Cline panel
Tools are available in agent context
Ask: "Analyze type coverage and suggest improvements"

🔧 Other MCP-Compatible Clients

Any MCP-compatible client can use this server. General configuration:

"mcpServers": { "ohm-mcp": { "command": " ", "args": [" "], "cwd": " " } } }

Finding your Python path:

# Unix/Mac

which python

or

which python3

Windows

where python

💡 Quick Usage Examples

Once configured, simply reference tools in your AI assistant chat using the format: use #ohm-mcp.tool_name on the current file or @file_name.py

🗑️ Find Dead Code

Use #ohm-mcp.detect_dead_code on @utils.py

This will detect:

✅ Unused imports (import statements never referenced)
✅ Unused variables (assigned but never read)
✅ Unreachable code (after return/raise/break/continue)
✅ Unused functions (defined but never called)
✅ Shadowed variables (inner scope hides outer scope variable)

📋 Code Duplication Detection

Use #ohm-mcp.detect_code_duplicates to find duplicates in /path/to/project

Finds:

✅ Exact duplicates (100% identical code blocks)
✅ Near duplicates (90%+ similarity)
✅ Duplicate functions (same structure, different names)
✅ Provides refactoring suggestions to eliminate duplication

🏗️ Architecture Analysis

Analyze architecture of @my_module.py using #ohm-mcp.analyze_architecture

Detects:

✅ God Objects (classes doing too much)
✅ SOLID principle violations
✅ Circular dependencies
✅ High coupling issues

✂️ Extract Method Refactoring

Use #ohm-mcp.extract_method_ast to extract lines 45-60 from @handler.py into a new function called "process_request"

Automatically:

✅ Detects required parameters
✅ Identifies return values
✅ Generates refactored code
✅ Creates unified diff patch

🔄 Safe Symbol Renaming

Use #ohm-mcp.rename_symbol to rename "old_function_name" to "new_function_name" in /path/to/project

Features:

✅ AST-based (100% accurate)
✅ Detects naming conflicts
✅ Shows all occurrences before applying
✅ Updates docstrings and comments

📊 Type Coverage Analysis

Analyze type hints in @module.py using #ohm-mcp.analyze_type_hints

Provides:

✅ Coverage percentage and grade
✅ Functions missing type hints
✅ Suggested type annotations
✅ Migration plan with priorities

⚡ Performance Optimization

Use #ohm-mcp.analyze_performance on @slow_module.py

Detects:

✅ Nested loops (O(n²) complexity)
✅ Quadratic list operations
✅ Repeated function calls (missing caching)
✅ Mutable default arguments
✅ Inefficient string concatenation

🧪 Auto-Generate Tests

Generate tests for @calculator.py using #ohm-mcp.generate_characterization_tests

Creates:

✅ Happy path test cases
✅ Edge cases (None, zero, negative, empty)
✅ Ready-to-run pytest code
✅ Preserves current behavior before refactoring

🎨 Design Pattern Suggestions

Suggest design patterns for @legacy_code.py using #ohm-mcp.suggest_design_patterns

Recommends:

✅ Strategy pattern for long if/elif chains
✅ Factory pattern for repetitive object creation
✅ Observer pattern for callback hell
✅ Decorator pattern for cross-cutting concerns

🔧 Import Refactoring

Use #ohm-mcp.refactor_imports to update all files in /path/to/project from "old.module" to "new.module"

Handles:

✅ Direct imports (import old.module)
✅ From imports (from old.module import X)
✅ Submodule imports
✅ Import aliases

🎯 Key Tools (30 Total)

📋 General Analysis & Planning (4 tools)

Tool	Purpose	Output
`analyze_codebase`	Comprehensive code analysis	Issues + refactoring plan
`propose_function_refactor`	Function-level refactor planning	Detailed refactor proposal
`explain_refactoring`	Explain refactoring patterns	Educational guidance
`create_refactor_patch`	Generate unified diff patches	Patch file

🏗️ Architecture & Design (4 tools)

| Tool | Purpose | Out

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

Ohm MCP

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

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

Compared with others in Developer toolsi

Common questions

Alternatives

GitHub

Desktop Commander

Cloudflare MCP

README from the maker

OHM-MCP

✨ Core Capabilities

🏗️ Architecture

🔧 Code Quality

📊 Type Safety

⚡ Performance

🤖 Automation

🚀 Quick Start

Installation

📦 Recommended: NPM Method (Auto-installs dependencies)

🐍 Alternative: PyPI Method (For local development)

IDE Configuration

📦 Option 1: NPX (Recommended - Auto-installs dependencies)

🐍 Option 2: Direct Python (Manual setup)

or

Windows

💡 Quick Usage Examples

🗑️ Find Dead Code

📋 Code Duplication Detection

🏗️ Architecture Analysis

✂️ Extract Method Refactoring

🔄 Safe Symbol Renaming

📊 Type Coverage Analysis

⚡ Performance Optimization

🧪 Auto-Generate Tests

🎨 Design Pattern Suggestions

🔧 Import Refactoring

🎯 Key Tools (30 Total)