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RishiSarraff

PersonalLeetcodeMCP

by RishiSarraff

Tether — LeetCode MCP + Spaced Repetition Coach

A remote MCP server that connects Claude to your LeetCode data, tracks your practice with a spaced-repetition system, and (optionally) sends scheduled check-in texts so you actually keep up with review.

Tools provided

Tool

Description

get_submission_history

Recent submissions with status, language, multi-attempt detection

analyze_weak_areas

Topic-by-topic weak vs. strong breakdown

get_user_stats

Accepted/submission counts, streaks, ranking percentile

get_daily_challenge

Today's daily challenge problem

search_problems_by_topic

Filter problems by tag and/or difficulty

get_problem_details

Full statement, constraints, hints, examples for one problem

get_similar_problems

Problems LeetCode tags as related

recommend_next_problem

LeetCode's own "what to try next" suggestions

start_mock_interview

Random problem by difficulty/topic/company, framed as a timed interview

log_attempt

Record an attempt's outcome, updating its review schedule

get_due_for_review

What's due or overdue for spaced-repetition review

set_review_intensity

Configure check-in frequency (GRIND / MODERATE / BUSY / MINIMAL) and phone number

compare_topic_coverage

Your tag coverage vs. core FAANG interview topics

Related MCP server: Interactive LeetCode MCP

Setup

1. Environment variables

UPSTASH_REDIS_REST_URL= UPSTASH_REDIS_REST_TOKEN= LEETCODE_SESSION= # your LeetCode session cookie, for Premium-gated data CSRF_TOKEN= # your LeetCode csrftoken cookie DAILY_CHECK_SECRET= # shared secret protecting /internal/daily-check TETHER_USERNAME= # your LeetCode username (solo-phase, hardcoded)

2. Local development

npm install npm run build npm start

3. Deploy (required for Claude.ai)

Push to GitHub, then deploy on Render:

  • Runtime: Docker (Dockerfile is included)

  • Add all env vars above under the Environment tab

4. Add to Claude.ai

Settings → Connectors → Add custom connector → enter https://your-deployment-url.com/mcp

5. Set up the daily check-in cron (optional)

Using a free service like cron-job.org, schedule a daily POST to https://your-deployment-url.com/internal/daily-check with header x-daily-check-secret: <your DAILY_CHECK_SECRET>.

Notes on LeetCode's API

LeetCode has no official public API. This server uses the same GraphQL endpoint LeetCode's own frontend uses — it may break if LeetCode changes their API structure. Authenticated queries (Premium data, company tags) require a valid LEETCODE_SESSION + CSRF_TOKEN pair from your browser.

Maintenance

ActivityMaintained
ResponsivenessNo issues

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