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NeuroStack MCP Server

by raphasouthall Your server? Claim it
not responding

NeuroStack is listed as active in the registry but did not answer our last check. 30 installs a week from npm. Last commit 21 Sep 2026.

Token-efficient MCP memory for Markdown vaults. Tiered search, GraphRAG, AI memories.

Installs per day peak 42 · avg 11 · -77% w/w
a month agotoday
Uptime history 51 days of history · worst day 0%
51 days agonow
0.0%
Uptime 24h
0 of 91 checks
Tools
hidden behind auth
40 ms
Response time
average over 24h
30
Installs / week
npm and PyPI

What the code does

We read the source, 16 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 a command on install [пакет] package.json:1
postinstall: node postinstall.js
    const result = execSync(lookup, { encoding: "utf8", stdio: ["pipe", "pipe", "pipe"] }).trim();
In the project's build, not in the package

Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.

                    cfg.checkpoint_command, shell=True, input=prompt.text,
Reads files and sends them to the network src/neurostack/consolidate.py:107, src/neurostack/harvest.py:235
    for path in sorted(root.rglob(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

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 5 min ago.

run in your terminal
claude mcp add neurostack --transport http https://mcp.neurostack.sh/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "neurostack": {
      "url": "https://mcp.neurostack.sh/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.neurostack]
url = "https://mcp.neurostack.sh/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "neurostack": {
      "url": "https://mcp.neurostack.sh/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "neurostack": {
      "url": "https://mcp.neurostack.sh/mcp"
    }
  }
}

This one needs environment variables set before it will start: NEUROSTACK_VAULT_ROOT (Path to your Markdown vault (e.g. ~/brain, ~/notes)). The author declared them in the registry entry; get the values from the project itself.

Endpoints

URLTransportStateLatencyChecked
https://mcp.neurostack.sh/mcp streamable-http answering 40 ms 5 min ago

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Local-first memory for Claude Code and any MCP client: hybrid search + knowledge graph, $0/token.

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NeuroStack — questions

Answers built from our own checks of this server.

Is NeuroStack working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 91 checks got a reply (0.0%), average response time 40 ms. The bar chart above shows every period we have measured.
The registry lists NeuroStack as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect NeuroStack?
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 is a remote server, so there is nothing to install — the client connects to the address.
Does NeuroStack need an API key?
No. NeuroStack completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. This is what we observed, not what the docs claim.
How many people use NeuroStack?
The npm package neurostack was installed 30 times in the last week. Week over week that is -77%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is NeuroStack open source?
Yes — it is published under the Apache-2.0 licence, written in Python, 47 stars on GitHub and 26 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.