Interactive LeetCode MCP

Interactive LeetCode practice with AI-guided learning through Claude

Features

🔐 One-time browser authorization - Log in once, practice forever
📝 Solution submission - Submit code and get instant results
💬 Conversational workflow - Practice naturally with Claude Code
🌍 Multi-language support - Java, Python, C++, JavaScript, TypeScript
📊 Detailed feedback - Runtime stats, memory usage, failed test cases
📚 Problem data - Descriptions, constraints, examples, editorial solutions
👤 User tracking - Profile data, submission history, contest rankings

Prerequisites

Node.js v20.x or above
LeetCode account

Installation

Via NPM (Recommended)

npm install -g @sperekrestova/interactive-leetcode-mcp

From Source

git clone https://github.com/SPerekrestova/interactive-leetcode-mcp.git
cd interactive-leetcode-mcp
npm install && npm run build
npm link

Configuration

Claude Code & Claude Desktop

Add to your MCP configuration file (~/.config/claude-code/mcp.json) or (~/Library/Application Support/Claude/claude_desktop_config.json):

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

Local build

{
  "mcpServers": {
    "leetcode": {
      "command": "node",
      "args": ["/path/to/this/project/interactive-leetcode-mcp/build/index.js"]
    }
  }
}

Quick Start

1. Authorize with LeetCode

You: "Authorize with LeetCode"
Claude: [Opens browser window]
You: [Log in to your LeetCode account]
Claude: "✓ Authorized! Credentials saved."

2. Practice a Problem

You: "I want to practice two-sum"
Claude: [Fetches problem and creates working file]

3. Get Help When Stuck

You: "Give me a hint"
Claude: [Provides contextual guidance based on your code]

4. Submit Your Solution

You: "Submit my solution"
Claude: "🎉 Accepted! Runtime: 2ms (beats 95.3%)"

Available Tools

Authorization

authorize_leetcode

Opens browser for one-time login
Saves credentials for all future operations
No parameters required

Problem Tools

get_daily_challenge

Fetch today's daily coding challenge

get_problem

Get detailed problem information by slug
Parameters: titleSlug (e.g., "two-sum")

search_problems

Search problems by difficulty, tags, keywords
Supports filtering and pagination

Submission Tools

submit_solution

Submit code and get real-time results
Parameters: problemSlug, code, language
Returns: acceptance status, runtime, memory, or failed test case

Troubleshooting

"Not authorized" error

Run authorization again: Ask Claude to "Authorize with LeetCode"
Browser will open for you to log in

"Unsupported language" error

Supported languages: java, python, python3, cpp, c++, javascript, js, typescript, ts

Submission timeout

LeetCode may be slow, wait and retry
Check internet connection

Browser doesn't open during authorization

Ensure Playwright is installed: npx playwright install chromium

Acknowledgements

Forked from Leetcode mcp)

interactive-leetcode-mcp

Quick Install