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Lsp MCP Server

by theupsider Your server? Claim it
local only

Lsp MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 113 installs a week from npm. Last commit 26 Jul 2026.

Universal LSP MCP server

Installs per day peak 139 · avg 46 · -28% w/w
a month agotoday
113
Installs / week
npm · @theupsider/lsp-mcp
3
Stars
0 open issues
26 Jul 2026
Last commit
0 releases in 90 days
License
TypeScript

What the code does

We read the source, 22 h ago · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Runs an external command src/lsp/lsp-client.ts:94
    this.process = spawn(this.serverDef.cmd, this.serverDef.args, {
Builds a file path from a variable src/mcp/tools/write-tools.ts:217
    const candidate = path.join(currentDir, fileName);

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add lsp-mcp -- npx -y @theupsider/lsp-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "lsp-mcp": {
      "args": [
        "-y",
        "@theupsider/lsp-mcp"
      ],
      "command": "npx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.lsp-mcp]
command = "npx"
args = ["-y", "@theupsider/lsp-mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "lsp-mcp": {
      "args": [
        "-y",
        "@theupsider/lsp-mcp"
      ],
      "command": "npx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "lsp-mcp": {
      "args": [
        "-y",
        "@theupsider/lsp-mcp"
      ],
      "command": "npx"
    }
  }
}

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Lsp MCP — questions

Answers built from our own checks of this server.

Why is there no uptime for Lsp MCP?
Lsp MCP runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @theupsider/lsp-mcp was installed 113 times last week.
How do I connect Lsp MCP?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls @theupsider/lsp-mcp straight from npm; nothing to host, nothing to sign up for.
How many people use Lsp MCP?
The npm package @theupsider/lsp-mcp was installed 113 times in the last week. Week over week that is -28%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Lsp MCP open source?
We cannot say either way: written in TypeScript and 3 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.