Opn MCP Server

by ysalitrynskyi Your server? Claim it

local only

Opn MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 40 installs a week from npm. Last commit 17 Jul 2026.

MCP server for opn.onl: shorten links, analytics, branded QR codes, and link management.

Installs per day peak 22 · avg 8 · -22% w/w

a month agotoday

Installs / week

npm · opn-mcp

Stars

0 open issues

17 Jul 2026

Last commit

0 releases in 90 days

MIT

License

TypeScript

Nothing serious here today

Today is the operative word: we check Opn MCP 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 opn-mcp -- npx -y opn-mcp

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

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

~/.codex/config.toml

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

.cursor/mcp.json

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

.vscode/mcp.json

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

This one needs environment variables set before it will start: OPN_API_KEY (Your opn.onl API key (create one under Settings → API Keys).), OPN_BASE_URL (API base URL. Set this to your own instance's API for a self-hosted opn.onl.). The author declared them in the registry entry; get the values from the project itself.

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Opn MCP — questions

Answers built from our own checks of this server.

Why is there no uptime for Opn MCP?

Opn MCP 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 opn-mcp was installed 40 times last week.

How do I connect Opn MCP?

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 opn-mcp straight from npm; nothing to host, nothing to sign up for.

How many people use Opn MCP?

The npm package opn-mcp was installed 40 times in the last week. Week over week that is -22%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Opn MCP open source?

Yes — it is published under the MIT licence, written in TypeScript and 2 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.