Cosmos MCP

One exocortex. Every agent. MCP server for your Cosmos graph. Every AI you use is building its own private graph of you. Claude has one. ChatGPT has one. Cursor has one. None of them talk to each other, and none of them are yours. It runs locally over stdio via the published package.

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

VERIFIED ACTIVE

LAST COMMIT 2026-07-23 · ★ 3 · #65 OF 139 MAINTAINED PRODUCTIVITY · VERIFIED 2026-08-25

MIT · TypeScript servers · how we verify → /methodology

01 · Install Cosmos MCP

before you install - you'll need

The README does not document required environment variables for a basic install.

Claude Code

claude mcp add teampolarity-cosmos-mcp -- npx -y @polarity-lab/cosmos-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "teampolarity-cosmos-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@polarity-lab/cosmos-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 MIT - declared in the repository

npm package @polarity-lab/cosmos-mcp - the @polarity-lab scope differs from the repo owner (teampolarity); confirm it's the project's official package

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

03 · What Cosmos MCP can do

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

Latest releases

v0.9.29 · 2026-07-03

Launch fix - removed invalid Sign in with Apple entitlement (app opens without SIGKILL). · Connect sheet - FDA, MCP key, URL handler status; one-tap install-handler + Open Connectors. · Signed with Developer ID, not…

v0.9.28 · 2026-07-03

Native Thread and Settings in SwiftUI - no WKWebView for Thread or Settings. · Native login (magic code + Sign in with Apple) · Native Thread deck with compose, receipts, connect · Native Settings with sync and FDA…

04 · Who maintains Cosmos MCP

cosmos-mcp is maintained by teampolarity. It's the only MCP server we track from this author; the repo dates to May 2026.

05 · Facts

repository: github.com/teampolarity/cosmos-mcp
category: productivity - ranked #65 of 139 actively-maintained productivity servers as of 2026-08-25.
release cadence: 2 releases in the last 90 days (latest 2026-07-03)
registry: io.github.teampolarity/cosmos-mcp (active, first published 2026-05-18 · 2 versions)
packages: npm:@polarity-lab/cosmos-mcp

06 · Cosmos MCP FAQ

What is Cosmos MCP?

Is Cosmos MCP still maintained?

Yes - as of 2026-08-25, its last commit was 2026-07-23 and it shipped 2 releases in the last 90 days. We re-verify nightly.

How do I install Cosmos MCP?

Run `npx -y @polarity-lab/cosmos-mcp`. The README does not document required environment variables for a basic install. You can also paste the ready-made client config above.

Does Cosmos 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 Cosmos MCP

Alternatives to Cosmos MCP

Maintained productivity servers if Cosmos MCP isn't the fit.

Pairs well with

Servers that cover what Cosmos MCP doesn't - only shown when the pairing reason fits the companion.

More productivity MCP servers · Temporal Cortex Calendar MCP · Mneme (thegoatpsy) · NeuroDock Task Fractionator · Tendem MCP server · Hoteloracle

More TypeScript MCP servers · TempGuru Event Staffing · Cloud Base · Terminal49 · Tessera MCP Server · Testdino MCP · see all