mcpbeat

ChatCrystal MCP Server

io.github.ZengLiangYi/chatcrystal
local only

ChatCrystal runs on your own machine — the client starts it, so there is no endpoint to ping. 207 installs a week from npm. Last commit 27 Jun 2026.

Local-first AI PKM memory for coding conversations.

Installs per day peak 67 · avg 20 · +59% w/w
a month agotoday
207
Installs / week
npm · chatcrystal
51
Stars
0 open issues
27 Jun 2026
Last commit
0 releases in 90 days
Apache-2.0
License
TypeScript

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

ChatCrystal — questions

Answers built from our own checks of this server.

Why is there no uptime for ChatCrystal?
ChatCrystal 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 chatcrystal was installed 207 times last week.
How do I connect ChatCrystal?
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 chatcrystal straight from npm; nothing to host, nothing to sign up for.
How many people use ChatCrystal?
The npm package chatcrystal was installed 207 times in the last week. Week over week that is +59%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is ChatCrystal open source?
Yes — it is published under the Apache-2.0 licence, written in TypeScript and 51 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.