Locus MCP Server

by paladini Your server? Claim it

local only

Locus runs on your own machine — the client starts it, so there is no endpoint to ping. 36 installs a week from npm. Last commit 26 Jul 2026.

Lightweight MCP server for LSP code intelligence — symbol lookup, refs, types, diagnostics.

Installs per day peak 18 · avg 6 · +179% w/w

a month agotoday

Installs / week

npm · @paladini/locus-mcp

Stars

0 open issues

26 Jul 2026

Last commit

0 releases in 90 days

MIT

License

TypeScript

What the code does

We read the source, 19 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 packages/core/src/lsp-client/connection.ts:58, packages/core/src/lsp-client/manager.ts:131

    this.process = spawn(this.options.command, this.options.args ?? [], {

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.

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.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add locus-mcp -- npx -y @paladini/locus-mcp

~/Library/Application Support/Claude/claude_desktop_config.json

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

~/.codex/config.toml

[mcp_servers.locus-mcp]
command = "npx"
args = ["-y", "@paladini/locus-mcp"]

.cursor/mcp.json

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

.vscode/mcp.json

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

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Locus — questions

Answers built from our own checks of this server.

Why is there no uptime for Locus?

Locus 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 @paladini/locus-mcp was installed 36 times last week.

How do I connect Locus?

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 @paladini/locus-mcp straight from npm; nothing to host, nothing to sign up for.

How many people use Locus?

The npm package @paladini/locus-mcp was installed 36 times in the last week. Week over week that is +179%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Locus open source?

Yes — it is published under the MIT licence, written in TypeScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.