Lsp MCP

A Model Context Protocol (MCP) server that gives language models access to Language Server Protocol (LSP) functionality across all major programming languages. Unlike existing LSP-MCP servers, this project supports 13 languages out of the box with zero manual configuration - it automatically detects your codebase, selects the right language server, and exposes all LSP operations through a stable…

People connecting this server to Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-07-26 · ★ 3 · #95 OF 848 MAINTAINED OTHER · VERIFIED 2026-08-25

NOASSERTION · TypeScript servers · how we verify → /methodology

01 · Install Lsp MCP

Claude Code

claude mcp add theupsider-lsp-mcp -- npx -y @theupsider/lsp-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "theupsider-lsp-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@theupsider/lsp-mcp"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license no standard license detected - usage rights unclear; check the repo before commercial use

npm package @theupsider/lsp-mcp - published under the repo owner's npm scope (@theupsider)

registry namespace io.github.theUpsider is GitHub-verified and matches the repo owner

03 · What Lsp MCP can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v1.0.7 · 2026-05-05

Add GitHub issue templates for bug reports and feature requests · New Contributors · @Copilot made their first contribution in

v1.0.3 · 2026-04-29

v1.0.0 · 2026-04-29

04 · Who maintains Lsp MCP

lsp-mcp is maintained by theupsider. It's the only MCP server we track from this author; the repo dates to Apr 2026.

05 · Facts

repository: github.com/theupsider/lsp-mcp
category: other - ranked #95 of 848 actively-maintained other servers as of 2026-08-25.
registry: io.github.theUpsider/lsp-mcp (active, first published 2026-05-05)
packages: npm:@theupsider/lsp-mcp

06 · Lsp MCP FAQ

What is Lsp MCP?

Is Lsp MCP still maintained?

Yes - as of 2026-08-25, its last commit was 2026-07-26. We re-verify nightly.

How do I install Lsp MCP?

Run `npx -y @theupsider/lsp-mcp`. You can also paste the ready-made client config above.

Does Lsp MCP run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Lsp MCP

Alternatives to Lsp MCP

Maintained other servers if Lsp MCP isn't the fit.

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