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Locus MCP Server

by nano-nimbus Your server? Claim it
local only

Locus runs on your own machine — the client starts it, so there is no endpoint to ping. 149 installs a week from pypi. Last commit 8 Sep 2026.

Hierarchical markdown memory palace for AI agents — structured palace navigation via MCP tools.

Installs per day peak 73 · avg 30 · -33% w/w
a month agotoday
149
Installs / week
pypi · locus-mcp
0
Stars
1 open issues
8 Sep 2026
Last commit
0 releases in 90 days
MIT
License
Python

What the code does

We read the source, 20 h ago · rules 3dff92dd89df

A tool parameter reaches a dangerous call

A value the model can set ends up inside a file or shell call. That is not a flaw by itself — for a terminal server it is the job — but it is where things go wrong when it is not.

A tool parameter reaches a dangerous call memory_search.path → locus/mcp/server.py:219, memory_search.path → locus/mcp/server.py:257
    result = subprocess.run(
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 [пакет] locus/mcp/server.py:219, locus/conform/fix.py:74, locus/mcp/server.py:257
    result = subprocess.run(
Executes code built at runtime locus/cli.py:29
        module = __import__(module_name, fromlist=[function_name])

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

A tool parameter here reaches a dangerous call

That is not a flaw by itself — but it is where things go wrong when it is not the job. We re-read this code on every release. Watch it and you hear from us the day another one appears.

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 locus -- uvx locus-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "locus": {
      "args": [
        "locus-mcp"
      ],
      "command": "uvx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.locus]
command = "uvx"
args = ["locus-mcp"]
.cursor/mcp.json
{
  "mcpServers": {
    "locus": {
      "args": [
        "locus-mcp"
      ],
      "command": "uvx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "locus": {
      "args": [
        "locus-mcp"
      ],
      "command": "uvx"
    }
  }
}

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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 pypi package locus-mcp was installed 149 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 locus-mcp straight from pypi; nothing to host, nothing to sign up for.
How many people use Locus?
The pypi package locus-mcp was installed 149 times in the last week. Week over week that is -33%. 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 Python, 0 stars on GitHub and 1 open issue. The source link is on this page, so you can read exactly what it does with your data before you connect it.