LeetCode MCP server for AI agents

The MCP Server LeetCode is a powerful tool that enables AI assistants to access LeetCode problems, user information, and contest data through the Model Context Protocol. It provides seamless integration with Claude and other MCP-compatible AI assistants, giving them the ability to search problems, retrieve daily challenges, and check user profiles.

Installation Options

Via Smithery (Recommended for Claude Desktop)

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

Global Installation

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

After global installation, run directly from the command line:

mcp-server-leetcode

Local Installation

npm install @mcpfun/mcp-server-leetcode

Integration with Claude for Desktop

Add this configuration to your Claude for Desktop claude_desktop_config.json file:

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

For local development, use:

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

Using as a Library

You can also use the MCP Server LeetCode as a JavaScript library:

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

How to add this MCP server to Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > MCP and click "Add new global MCP server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

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

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explictly ask the agent to use the tool by mentioning the tool name and describing what the function does.