LeetCode MCP Server: Your Complete LeetCode API in One Package

Stop scraping LeetCode pages and wrestling with their undocumented APIs. This MCP server gives you clean, programmatic access to everything LeetCode offers—problems, solutions, user data, and more—through a single, well-documented interface.

The Problem You're Solving

You're building LeetCode-integrated tools, training platforms, or interview prep systems. You need reliable access to problem data, user statistics, and submission histories. LeetCode's frontend APIs are undocumented, inconsistent, and prone to breaking changes. Building your own scrapers means constant maintenance headaches.

This server eliminates all of that. It provides a stable, comprehensive interface to both leetcode.com and leetcode.cn, handling authentication, rate limiting, and API quirks for you.

What You Get

Complete LeetCode Coverage

• 20+ tools covering problems, users, solutions, and notes
• Daily challenges, contest rankings, submission analysis
• Advanced search with filtering by difficulty, tags, and categories
• Both public and authenticated endpoints

Dual Platform Support

• Works with leetcode.com (global) and leetcode.cn (China)
• Same interface, different backends—switch with a single parameter
• Handles regional API differences transparently

Authentication When You Need It

• Public endpoints work immediately (no auth required)
• Private data access with simple session cookie setup
• User submissions, notes, progress tracking, detailed analytics

Practical Use Cases

Build Interview Prep Tools

// Get today's daily challenge
const daily = await mcp.call('get_daily_challenge');

// Search for specific problem types
const problems = await mcp.call('search_problems', {
  tags: ['dynamic-programming', 'binary-tree'],
  difficulty: 'MEDIUM',
  limit: 50
});

// Analyze user's submission patterns
const report = await mcp.call('get_problem_submission_report', {
  id: submissionId
});

Create Learning Analytics

// Track user progress across problem categories
const progress = await mcp.call('get_problem_progress', {
  questionStatus: 'SOLVED',
  difficulty: ['MEDIUM', 'HARD']
});

// Analyze recent performance
const submissions = await mcp.call('get_recent_ac_submissions', {
  username: 'student123',
  limit: 100
});

Build Content Systems

// Get problem with full editorial content
const problem = await mcp.call('get_problem', {
  titleSlug: 'two-sum'
});

// Fetch community solutions
const solutions = await mcp.call('list_problem_solutions', {
  questionSlug: 'two-sum',
  orderBy: 'MOST_VOTES',
  limit: 10
});

Setup Takes Minutes

Install globally:

npm install -g @jinzcdev/leetcode-mcp-server

Run immediately for public data:

npx @jinzcdev/leetcode-mcp-server --site global

Add authentication for private data:

npx @jinzcdev/leetcode-mcp-server --site global --session YOUR_SESSION_COOKIE

Integration Options

Claude Desktop Integration Add to your settings.json:

{
  "mcp": {
    "servers": {
      "leetcode": {
        "type": "stdio",
        "command": "npx",
        "args": ["-y", "@jinzcdev/leetcode-mcp-server"],
        "env": {
          "LEETCODE_SITE": "global",
          "LEETCODE_SESSION": "your_session_cookie"
        }
      }
    }
  }
}

VS Code Integration Works with any MCP-compatible client. Set up once, use everywhere.

Why This Matters

Instead of maintaining fragile scrapers or reverse-engineering APIs, you get a maintained, documented interface that handles:

• API endpoint discovery and changes
• Rate limiting and request management
• Authentication flow complexity
• Regional differences between platforms
• Response format standardization

Your time stays focused on building features, not debugging API integration.

Ready to Start?

The server supports both quick experimentation and production deployment. Whether you're prototyping an interview prep tool or building a learning management system, you'll have reliable LeetCode integration running in minutes.

Check out the full documentation for complete tool references and advanced configuration options.