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Syncpen MCP Server

local only

Syncpen runs on your own machine — the client starts it, so there is no endpoint to ping. 69 installs a week from npm. Last commit 24 Aug 2026.

The markdown workspace your AI can read, search, and suggest edits in — every change signed.

Installs per day peak 58 · avg 9 · -36% w/w
a month agotoday
69
Installs / week
npm · syncpen-mcp
0
Stars
1 open issue
24 Aug 2026
Last commit
2 releases in 90 days
MIT
License
TypeScript

Nothing serious here today

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

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 syncpen-mcp -e 'SYNCPEN_API_KEY=<SYNCPEN_API_KEY>' -- npx -y syncpen-mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "syncpen-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "syncpen-mcp"
      ],
      "env": {
        "SYNCPEN_API_KEY": "<SYNCPEN_API_KEY>"
      }
    }
  }
}
~/.codex/config.toml
[mcp_servers.syncpen-mcp]
command = "npx"
args = ["-y", "syncpen-mcp"]
env = { SYNCPEN_API_KEY = "<SYNCPEN_API_KEY>" }
.cursor/mcp.json
{
  "mcpServers": {
    "syncpen-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "syncpen-mcp"
      ],
      "env": {
        "SYNCPEN_API_KEY": "<SYNCPEN_API_KEY>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "syncpen-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "syncpen-mcp"
      ],
      "env": {
        "SYNCPEN_API_KEY": "<SYNCPEN_API_KEY>"
      }
    }
  }
}

Put your own value in place of <SYNCPEN_API_KEY> (Your Syncpen API key (starts with sp_). Create one at https://www.syncpen.io/settings/api-keys). The author’s registry entry marks it as required.

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Syncpen — questions

Answers built from our own checks of this server.

Why is there no uptime for Syncpen?
Syncpen 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 syncpen-mcp was installed 69 times last week.
How do I connect Syncpen?
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 syncpen-mcp straight from npm; nothing to host, nothing to sign up for.
How many people use Syncpen?
The npm package syncpen-mcp was installed 69 times in the last week. Week over week that is -36%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is Syncpen open source?
Yes — it is published under the MIT licence, written in TypeScript, 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.