Context Mode vs Leetcode MCP Server

A side-by-side look at the Context Mode and Leetcode MCP Server MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Context Mode logoContext ModeCoding Agents · Local subprocess (stdio)Context window optimization for AI coding agents. Sandboxes tool output (98% reduction), persists session memory, and enforces routing across 17 platforms via MCP + hooks.64GoodAuth: no auth requiredLeetcode MCP Server logoLeetcode MCP ServerCoding Agents · Local subprocess (stdio)MCP server enabling automated access to LeetCode's programming problems, solutions, submissions and public data with optional authentication for user-specific features (e.g., notes), supporting both leetcode.com (global) and leetcode.cn (China) sites.69GreatAuth: other

Verdict: choose Context Mode for coding agents work as a local process; choose Leetcode MCP Server for coding agents as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Context Mode logoChoose Context Mode when

  • You need dedicated capabilities in the Coding Agents domain.
  • You prefer a local stdio subprocess transport.
  • Its auth model fits you: No auth required.
  • You want tools like ctx_batch_execute, ctx_execute, ctx_execute_file.
Explore Context Mode

Leetcode MCP Server logoChoose Leetcode MCP Server when

  • You need dedicated capabilities in the Coding Agents domain.
  • You prefer a local stdio subprocess transport.
  • Its auth model fits you: other.
  • You want tools like get_daily_challenge, get_problem, search_problems.
Explore Leetcode MCP Server

Feature & specification comparison

Rows where the two servers differ are marked.

SpecContext Mode logoContext ModeLeetcode MCP Server logoLeetcode MCP Server
CategoryCoding AgentsCoding Agents
Quality signal64/100 · Good69/100 · Great
Install commandConfirmedConfirmed
TransportLocal subprocess (stdio)Local subprocess (stdio)
AuthNo auth requiredother
PricingFreeFree
Required env varsNone listedNone listed
Verified ownerCommunity listingCommunity listing
GitHub stars31,671154
Directory activity 0 views 0 installs 0 upvotes 7 views 0 installs 0 upvotes
Tools109

Tools & capabilities

Context Mode tools 10

  • ctx_batch_executeRun multiple commands + search multiple queries in ONE call. Opt-in `concurrency: 1-8` for I/O-bound batches.
  • ctx_executeRun code in 12 languages. Only stdout enters context.
  • ctx_execute_fileProcess files in sandbox. Raw content never leaves.
  • ctx_indexChunk markdown into FTS5 with BM25 ranking.
  • ctx_searchQuery indexed content with multiple queries in one call.
  • ctx_fetch_and_indexFetch URL, chunk and index. Cache reuses content within TTL (default 24h, override per-call with `ttl: <ms>`). `ttl: 0` or `force: true` to bypass. Pass `requests: [{url, source}, ...]` + `concurrency: 1-8` for parallel multi-URL.
  • ctx_statsShow context savings, call counts, and session statistics.
  • ctx_doctorDiagnose installation: runtimes, hooks, FTS5, versions.
  • ctx_upgradeUpgrade to latest version from GitHub, rebuild, reconfigure hooks.
  • ctx_purgePermanently deletes all indexed content from the knowledge base.

Leetcode MCP Server tools 9

  • get_daily_challengeRetrieves today's Daily Challenge problem with full description (read-only, no auth). Returns problem details for the current date as JSON. Use get_problem when you know a specific titleSlug; use search_problems to discover problems by filters.
  • get_problemRetrieves a single LeetCode problem by titleSlug (read-only, no auth). Returns description, examples, constraints, and metadata as JSON. Use search_problems to find problems by keyword/tag/difficulty; use get_daily_challenge for today's featured problem.
  • search_problemsSearches LeetCode problems by category, tags, difficulty, and keywords (read-only, no auth). Supports pagination via limit/offset. Returns matching problem list as JSON. Use get_problem when you already know the titleSlug; use this to browse or discover problems.
  • get_user_profileRetrieves any user's public profile by username (read-only, no auth). Returns ranking, avatar, bio, submission stats, and platform-specific progress. Use this to look up other users or public stats. Use get_user_status (requires auth) instead to verify the current session user's login state—not for looking up arbitrary users.
  • get_recent_submissionsRetrieves a user's recent submission history on LeetCode Global (read-only, no auth). Includes both accepted and failed submissions. Global only—not available on CN. Use get_recent_ac_submissions for accepted-only results, or get_all_submissions (auth, current user) for paginated full history with filters.
  • get_recent_ac_submissionsRetrieves a user's recent accepted (AC) submissions (read-only, no auth). Available on both Global and CN. Use get_recent_submissions (Global only) to include failed attempts, or get_all_submissions (auth, current user) for full paginated history.
  • get_user_contest_rankingRetrieves a user's contest ranking and participation history (read-only, no auth). Returns overall rating, ranking, and per-contest performance as JSON. Use get_user_profile for general stats and ranking; use this specifically for contest performance data.
  • list_problem_solutionsLists community solution articles for a problem (read-only, no auth). Returns metadata only (topicId)—not full content. Use get_problem_solution with the returned topicId to read the full article. Do not call this when you already have a topicId and need the solution text.
  • get_problem_solutionRetrieves full content of a community solution article (read-only, no auth). Requires topicId from list_problem_solutions. Returns article text, author, and metadata as JSON. Use list_problem_solutions first to discover solutions and obtain topicId.

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

Context Mode

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "context-mode": {
      "command": "npx",
      "args": [
        "-y",
        "context-mode"
      ]
    }
  }
}

Leetcode MCP Server

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "jinzcdev-leetcode-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@jinzcdev/leetcode-mcp-server"
      ]
    }
  }
}

Frequently asked questions

Context Mode is categorized under Coding Agents and uses a local stdio subprocess. Leetcode MCP Server belongs to Coding Agents and uses a local stdio subprocess. Pick Context Mode for coding agents work and Leetcode MCP Server for coding agents.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.

Context Mode is listed as free. Auth: no auth required. Leetcode MCP Server is listed as free. Auth: other. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add context-mode and jinzcdev-leetcode-mcp-server as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Context Mode has a quality signal of 64/100 (Good) with 0 views, 0 installs and 31,671 GitHub stars. Leetcode MCP Server has 69/100 (Great) with 7 views, 0 installs and 154 GitHub stars.