Opn MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 45 installs a week from npm. Last commit 17 Jul 2026.
MCP server for opn.onl: shorten links, analytics, branded QR codes, and link management.
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 mcp add opn-mcp -e 'OPN_API_KEY=<OPN_API_KEY>' -- npx -y opn-mcp{
"mcpServers": {
"opn-mcp": {
"command": "npx",
"args": [
"-y",
"opn-mcp"
],
"env": {
"OPN_API_KEY": "<OPN_API_KEY>"
}
}
}
}[mcp_servers.opn-mcp]
command = "npx"
args = ["-y", "opn-mcp"]
env = { OPN_API_KEY = "<OPN_API_KEY>" }{
"mcpServers": {
"opn-mcp": {
"command": "npx",
"args": [
"-y",
"opn-mcp"
],
"env": {
"OPN_API_KEY": "<OPN_API_KEY>"
}
}
}
}{
"servers": {
"opn-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"opn-mcp"
],
"env": {
"OPN_API_KEY": "<OPN_API_KEY>"
}
}
}
}Put your own value in place of
<OPN_API_KEY> (Your opn.onl API key (create one under Settings → API Keys)).
The author’s registry entry marks it as required.
Optional settings from the registry entry, left out of the block above:
OPN_BASE_URL (API base URL. Set this to your own instance's API for a self-hosted opn.onl).
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Opn MCP — questions
Answers built from our own checks of this server.