MCP Server LeetCode

A Model Context Protocol (MCP) server for LeetCode that enables AI assistants to access LeetCode problems, user information, and contest data.

Features

🚀 Fast access to LeetCode API
🔍 Search problems, retrieve daily challenges, and check user profiles
🏆 Query contest data and rankings
🧩 Full support for MCP tools and resources
📦 Provides both CLI and programmable API

Installation

Installing via Smithery

To install mcp-server-leetcode for Claude Desktop automatically via Smithery:

Terminal

npx -y @smithery/cli install @doggybee/mcp-server-leetcode --client claude

Global Installation

Terminal

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

Once installed, you can run it directly from the command line:

bash

mcp-server-leetcode

Local Installation

Terminal

npm install @mcpfun/mcp-server-leetcode

Usage

Integration with Claude for Desktop

Add the following to your Claude for Desktop claude_desktop_config.json file:

config.json

{
  "mcpServers": {
    "leetcode": {
      "command": "mcp-server-leetcode"
    }
  }
}

For local development:

config.json

{
  "mcpServers": {
    "leetcode": {
      "command": "node",
      "args": ["/path/to/dist/index.js"]
    }
  }
}

Use as a Library

server.ts

import { LeetCodeService } from '@mcpfun/mcp-server-leetcode';

// Initialize the service
const leetcodeService = new LeetCodeService();

// Get daily challenge
const dailyChallenge = await leetcodeService.getDailyChallenge();

// Search problems
const problems = await leetcodeService.searchProblems({
  difficulty: 'MEDIUM',
  tags: 'array+dynamic-programming'
});

Available Tools

Problem-related Tools

Tool Name	Description	Parameters
`get-daily-challenge`	Get the daily challenge	None
`get-problem`	Get details for a specific problem	`titleSlug` (string)
`search-problems`	Search for problems based on criteria	`tags` (optional), `difficulty` (optional), `limit` (default 20), `skip` (default 0)

User-related Tools

Tool Name	Description	Parameters
`get-user-profile`	Get user information	`username` (string)
`get-user-submissions`	Get user submission history	`username` (string), `limit` (optional, default 20)
`get-user-contest-ranking`	Get user contest rankings	`username` (string)

Contest-related Tools

Tool Name	Description	Parameters
`get-contest-details`	Get contest details	`contestSlug` (string)

Available Resources

Problem Resources

leetcode://daily-challenge: Daily challenge
leetcode://problem/{titleSlug}: Problem details
leetcode://problems{?tags,difficulty,limit,skip}: Problem list

User Resources

leetcode://user/{username}/profile: User profile
leetcode://user/{username}/submissions{?limit}: User submissions
leetcode://user/{username}/contest-ranking: User contest ranking

Local Development

Clone the repository and install dependencies:

bash

git clone https://github.com/doggybee/mcp-server-leetcode.git
cd mcp-server-leetcode
npm install

Run in development mode:

Terminal

npm run dev

Build the project:

Terminal

npm run build

License

MIT

Related Projects

Model Context Protocol - MCP specifications and documentation
Claude for Desktop - AI assistant with MCP support

Acknowledgements

This project was inspired by alfa-leetcode-api