A web application that serves up a little REST API to query and convey the status of Minecraft servers using the native MC protocol

Usage as a REST Server

To use only the ad hoc query endpoint, /server, just start using:

java -jar mc-status-$VERSION.jar

The following configuration parameters can be passed after the jar:

• --mcstatus.servers=host[:port]

  A comma separated list of host[:port] to pre-configure for use with /servers endpoint

• --mcstatus.defaultPort=25565

  The default port to use when absent from the property above or the ad hoc /server endpoint

• --mcstatus.serverInfoTimeoutSec=10

  The number of seconds allowed for a server info response to be received

• --cors.allowOrigins

  A comma separated list of specific origins (as URLs) to allow. Implies a setting of cors.allowAll=false

• --cors.allowAll=true

  Set to false to disable allowing of all cross-origin requests.

Usage as a one-shot status checker

You can also run mc-status in a one-shot, terse, script-friendly way by invoking it as:

java -jar mc-status --one-shot SERVER[:PORT] ...

If any SERVER[:PORT] status checks times out, then the process exits with a non-zero status code.

Some other options that are useful to include are:

• --results=FILE

  The name of a file where each line is a JSON response structure for the corresponding server.

• --mcstatus.exclude-icon=false

  Can be used to exclude the Base64 icon inclusion.

• --mcstatus.exclude-players=false

  Can be used to exclude the list of player names. The online and max values are still included.

Response Structure

In response to GET /server?host=:host&port=:port

{
  "host": "localhost",
  "port": 25565,
  "version": "1.12",
  "protocolVersion": 335,
  "players": {
    "max": 20,
    "online": 0,
    "players": []
  },
  "description": "A Minecraft Server Powered by Docker",
  "icon": "iVBORw0KG...snip...AAASUVORK5CYII=",
  "motd": {
    "raw": "A Vanilla Minecraft Server powered by Docker",
    "html": "A Vanilla Minecraft Server powered by Docker",
    "stripped": "A Vanilla Minecraft Server powered by Docker"
  }
}

NOTE the icon is the Base64 encoding of a 64x64 PNG image

In response to GET /servers

[
  {
    "host": "localhost",
    "port": 25565,
    "version": "1.12",
    "protocolVersion": 335,
    "players": {
      "max": 20,
      "online": 0,
      "players": []
    },
    "description": "A Minecraft Server Powered by Docker",
    "icon": "iVBORw0KG...snip...ORK5CYII=",
    "motd": {
      "raw": "A Vanilla Minecraft Server powered by Docker",
      "html": "A Vanilla Minecraft Server powered by Docker",
      "stripped": "A Vanilla Minecraft Server powered by Docker"
    }
  }
]

Error when timed out connecting to Minecraft server:

{
  "timestamp": 1497050389168,
  "status": 502,
  "error": "Bad Gateway",
  "exception": "me.itzg.mcstatus.ServerTimeoutException",
  "message": "Timed out getting server info from localhost:25567 after 10 seconds",
  "path": "/server"
}

Formatted MOTD

The server status responses will take care of providing alternate formats for the Message of the Day (MOTD), where motd.html will replace the formatting codes with the appropriate <span> styling.

The motd.stripped provides a simplified string that removes the formatting codes and normalizes whitespace.

The description and motd.raw fields contain the original value as returned by the server.

For example, this is the response when querying mc.hypixel.net:

{
	"host": "mc.hypixel.net",
	"port": 25565,
	"version": "Requires MC 1.8-1.13",
	"protocolVersion": 316,
	"players": {
		"max": 62000,
		"online": 27264,
		"players": []
	},
	"description": "                §eHypixel Network §c[1.8-1.13]\n     §6§lBED WARS CASTLE V2 §7- §2§lMM BUG FIXES",
	"icon": "iVBORw0KGgoAAAANSUhEUgAAAE...",
	"motd": {
		"raw": "                §eHypixel Network §c[1.8-1.13]\n     §6§lBED WARS CASTLE V2 §7- §2§lMM BUG FIXES",
		"html": "                <span style=\"color:#FFFF55;\">Hypixel Network </span><span style=\"color:#FF5555;\">[1.8-1.13]<br>     </span><span style=\"color:#FFAA00;\"><span style=\"font-weight:bold;\">BED WARS CASTLE V2 </span></span><span style=\"color:#AAAAAA;\">- </span><span style=\"color:#00AA00;\"><span style=\"font-weight:bold;\">MM BUG FIXES</span></span>",
		"stripped": "Hypixel Network [1.8-1.13] BED WARS CASTLE V2 - MM BUG FIXES"
	}
}