LeetCode MCP Server

Features

• **Multi-site Support**: Supports both leetcode.com and leetcode.cn platforms

• **Problem Data Retrieval**: Obtain detailed problem descriptions, constraints, examples, and solution approaches

• **User Data Access**: Retrieve user profiles, submission history, and contest performance

• **Advanced Search Capabilities**: Filter problems by tags, difficulty levels, and categories

• **Daily Challenge Access**: Easily access daily challenge problems

Prerequisites

1. Node.js runtime environment

2. (Optional) LeetCode session cookie for authenticated API access

Installation

Installing via Smithery

Manual Installation

Usage

Visual Studio Code Integration

Environment Variables

• `LEETCODE_SITE`: LeetCode API endpoint ('global' or 'cn')

• `LEETCODE_SESSION`: LeetCode session cookie for authenticated API access

• If `LEETCODE_SITE=cn` is set but you run `leetcode-mcp-server --site global`, the server will use `global`.

• If `LEETCODE_SESSION` exists but you provide `--session "new_cookie"`, the command-line session value will be used.

Available Tools

Problems

Users

Notes

Solutions

Tool Parameters

Problems

• **get_daily_challenge** - Retrieves today's LeetCode Daily Challenge problem with complete details - No parameters required

• **get_problem** - Retrieves details about a specific LeetCode problem - `titleSlug`: The URL slug/identifier of the problem (string, required)

• **search_problems** - Searches for LeetCode problems based on multiple filter criteria - `category`: Problem category filter (string, optional, default: "all-code-essentials") - `tags`: List of topic tags to filter problems by (string[], optional) - `difficulty`: Problem difficulty level filter (enum: "EASY", "MEDIUM", "HARD", optional) - `searchKeywords`: Keywords to search in problem titles and descriptions (string, optional) - `limit`: Maximum number of problems to return (number, optional, default: 10) - `offset`: Number of problems to skip (number, optional)

Users

• **get_user_profile** - Retrieves profile information about a LeetCode user - `username`: LeetCode username (string, required)

• **get_user_contest_ranking** - Retrieves a user's contest ranking information - `username`: LeetCode username (string, required) - `attended`: Whether to include only the contests the user has participated in (boolean, optional, default: true)

• **get_recent_submissions** - Retrieves a user's recent submissions on LeetCode Global - `username`: LeetCode username (string, required) - `limit`: Maximum number of submissions to return (number, optional, default: 10)

• **get_recent_ac_submissions** - Retrieves a user's recent accepted submissions - `username`: LeetCode username (string, required) - `limit`: Maximum number of submissions to return (number, optional, default: 10)

• **get_user_status** - Retrieves the current user's status - No parameters required

• **get_problem_submission_report** - Retrieves detailed information about a specific submission - `id`: The numerical submission ID (number, required)

• **get_problem_progress** - Retrieves the current user's problem-solving progress - `offset`: Number of questions to skip (number, optional, default: 0) - `limit`: Maximum number of questions to return (number, optional, default: 100) - `questionStatus`: Filter by question status (enum: "ATTEMPTED", "SOLVED", optional) - `difficulty`: Filter by difficulty levels (string[], optional)

• **get_all_submissions** - Retrieves paginated list of user's submissions - `limit`: Maximum number of submissions to return (number, default: 20) - `offset`: Number of submissions to skip (number, default: 0) - `questionSlug`: Optional problem identifier (string, optional) - `lang`: Programming language filter (string, optional, CN only) - `status`: Submission status filter (enum: "AC", "WA", optional, CN only) - `lastKey`: Pagination token for retrieving next page (string, optional, CN only)

Notes

• **search_notes** - Searches for user notes on LeetCode China - `keyword`: Search term to filter notes (string, optional) - `limit`: Maximum number of notes to return (number, optional, default: 10) - `skip`: Number of notes to skip (number, optional, default: 0) - `orderBy`: Sort order for returned notes (enum: "ASCENDING", "DESCENDING", optional, default: "DESCENDING")

• **get_note** - Retrieves user notes for a specific LeetCode problem - `questionId`: The question ID of the LeetCode problem (string, required) - `limit`: Maximum number of notes to return (number, optional, default: 10) - `skip`: Number of notes to skip (number, optional, default: 0)

• **create_note** - Creates a new note for a specific LeetCode problem - `questionId`: The question ID of the LeetCode problem (string, required) - `content`: The content of the note, supports markdown format (string, required) - `summary`: An optional short summary or title for the note (string, optional)

• **update_note** - Updates an existing note with new content or summary - `noteId`: The ID of the note to update (string, required) - `content`: The new content for the note, supports markdown format (string, required) - `summary`: An optional new short summary or title for the note (string, optional)

Solutions

• **list_problem_solutions** - Retrieves a list of community solutions for a specific problem - `questionSlug`: The URL slug/identifier of the problem (string, required) - `limit`: Maximum number of solutions to return (number, optional, default: 10) - `skip`: Number of solutions to skip (number, optional) - `userInput`: Search term to filter solutions (string, optional) - `tagSlugs`: Array of tag identifiers to filter solutions (string[], optional, default: []) - `orderBy`: Sorting criteria for the returned solutions - Global: enum: "HOT", "MOST_RECENT", "MOST_VOTES", optional, default: "HOT" - CN: enum: "DEFAULT", "MOST_UPVOTE", "HOT", "NEWEST_TO_OLDEST", "OLDEST_TO_NEWEST", optional, default: "DEFAULT"

• **get_problem_solution** - Retrieves the complete content of a specific solution - `topicId`: Unique topic ID of the solution (string, required, Global only) - `slug`: Unique slug/identifier of the solution (string, required, CN only)

Available Resources

Resource URIs

• **problem-categories** - A list of all problem classification categories - URI: `categories://problems/all`

• **problem-tags** - A detailed collection of algorithmic and data structure tags - URI: `tags://problems/all`

• **problem-langs** - A complete list of all programming languages supported by LeetCode - URI: `langs://problems/all`

• **problem-detail** - Provides details about a specific LeetCode problem - URI: `problem://{titleSlug}` - Parameters: - `titleSlug`: Problem identifier as it appears in the LeetCode URL

• **problem-solution** - Provides the complete content of a specific solution - Global URI: `solution://{topicId}` - Parameters: - `topicId`: Unique topic ID of the solution - CN URI: `solution://{slug}` - Parameters: - `slug`: Unique slug/identifier of the solution

Authentication

1. Log in to LeetCode ([Global](https://leetcode.com) or [China](https://leetcode.cn) site)

2. Extract `LEETCODE_SESSION` cookie from browser developer tools

3. Configure server with `--session` flag or `LEETCODE_SESSION` environment variable

Response Format

License