interactive-leetcode-mcp — Claude Code MCP server
Wires LeetCode into your agent: fetch problems, step through hints, run sample tests locally, submit code. Handy when you grind interview prep inside the chat.
claude mcp add interactive-leetcode-mcp -- npx -y @sperekrestova/interactive-leetcode-mcpWhat interactive-leetcode-mcp does
The server gives the agent access to LeetCode problems and your account. You sign in once: the agent opens the browser, you log in and hand over two cookie values, csrftoken and LEETCODE_SESSION, and the server verifies them before saving. From there it can pull a problem by slug, search by difficulty or tag, and fetch the daily challenge.
Practice happens through sessions. start_problem opens or resumes a problem, request_hint walks you up the hint ladder one step at a time, and community editorials stay locked until you reach the last level. run_local_tests executes your code against the sample cases in a local subprocess; installed runtimes are required, and runner_doctor lists which ones it finds.
Submitting goes through submit_solution, which returns the verdict along with runtime and memory figures. The project is under active development, so expect rough edges. You need Node.js v20 or newer, a LeetCode account, and a browser for the login step.
What it helps with
- work a LeetCode problem with hints that unlock in stages
- try a solution on sample cases before submitting
- find problems by difficulty and topic
- submit code and read the verdict with runtime stats
- open an editorial after giving the problem a real try
Example prompts for the agent
- Authorize with LeetCode and walk me through it
- Start the two-sum problem in Python
- Give me a hint on the current problem
How to install interactive-leetcode-mcp
Platform CLI
claude mcp add interactive-leetcode-mcp -- npx -y @sperekrestova/interactive-leetcode-mcpPlatform CLI
codex mcp add interactive-leetcode-mcp -- npx -y @sperekrestova/interactive-leetcode-mcpConfig file
{
"mcpServers": {
"interactive-leetcode-mcp": {
"command": "npx",
"args": [
"-y",
"@sperekrestova/interactive-leetcode-mcp"
]
}
}
}Config file
{
"servers": {
"interactive-leetcode-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@sperekrestova/interactive-leetcode-mcp"
]
}
}
}Platform CLI
gemini mcp add interactive-leetcode-mcp npx -y @sperekrestova/interactive-leetcode-mcpStep by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more
Questions about interactive-leetcode-mcp
How do I install interactive-leetcode-mcp in Claude Code?
Run claude mcp add interactive-leetcode-mcp -- npx -y @sperekrestova/interactive-leetcode-mcp. The server then starts over stdio through npx.
What does interactive-leetcode-mcp do?
It exposes LeetCode tools to the agent: problem lookup, graded hints, a local test run, and solution submission with results.
What does the server need to run?
Node.js v20 or newer, a LeetCode account, and a browser for the login. Credentials are entered once during authorization.
