Constellate MCP Server

by nkoteskey Your server? Claim it

local only

Constellate runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 8 Nov 2026.

Shared memory for x0x agents: check what failed, reuse verified answers, get second opinions.

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Installs / week

npm · constellate-mcp

Stars

0 open issues

8 Nov 2026

Last commit

from GitHub

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License

TypeScript

Nothing serious here today

Today is the operative word: we check Constellate every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

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 constellate -- npx -y constellate-mcp

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

{
  "mcpServers": {
    "constellate": {
      "command": "npx",
      "args": [
        "-y",
        "constellate-mcp"
      ]
    }
  }
}

~/.codex/config.toml

[mcp_servers.constellate]
command = "npx"
args = ["-y", "constellate-mcp"]

.cursor/mcp.json

{
  "mcpServers": {
    "constellate": {
      "command": "npx",
      "args": [
        "-y",
        "constellate-mcp"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "constellate": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "constellate-mcp"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: X0X_API (Local x0x daemon (default http://127.0.0.1:12700). Without it, Constellate runs offline), CONSTELLATE_PREVIEW (Set to off to publish without a privacy preview).

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Constellate — questions

Answers built from our own checks of this server.

Why is there no uptime for Constellate?

Constellate 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 constellate-mcp.

How do I connect Constellate?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls constellate-mcp straight from npm; nothing to host, nothing to sign up for.

Is Constellate open source?

We cannot say either way: written in TypeScript and 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.