Matchmaking API

The matchmaking API allows Factorio servers to advertise themselves, and for players to browse open game servers. The matchmaking server currently uses Heroku and Green Unicorn software.

API root: https://multiplayer.factorio.com/

Some of the API endpoints require the use of an authentication token, which is obtained through the Web Authentication API. It is sent as the HTTP parameter named token and encoded using hexadecimal. For GET requests it is sent as part of the URL, and for POST requests it is sent as a POST parameter.

Work in progress! I'm just going to jot down some random notes in the mean time :P

https://multiplayer.factorio.com/get-games

https://multiplayer.factorio.com/get-game-details/ Unauthenticated

https://multiplayer.factorio.com/create-game

https://multiplayer.factorio.com/post-game-heartbeat/

https://multiplayer.factorio.com/remove-game/

Object Types

Server Description Object

Key	Type	Endpoints			Description
		get	details	create
application_version	object	✓	✓	✓	See application version below.
description	string		✓	✓	The server's description.
game_id	number	✓	✓	✓	A unique id generated by the matchmaking server to identify a server for other API endpoints.
game_secret	string			✓
game_time_elapsed	string(number)	✓	✓	✓	Number of in-game minutes the loaded map has elapsed.
has_password	string(boolean)	✓	✓	✓	"true" if a password is required to join the server.
host_address	string(ip:port)		✓	✓	The IP address and port number the game server is hosted on.
last_heartbeat	number		✓		The Unix timestamp of when the game server was last heard from.
max_players	string(number)	✓	✓	✓	Maximum number of players allowed to connect at once.
mod_count	number	✓			Number of mods installed on the server.
mods	object[]		✓	✓	List of mods and their versions installed on the server.
mods_crc	number		✓
name	string	✓	✓	✓	Server's name.
players	string[]	✓	✓		List of player's usernames connected to the server.
require_user_verification	string(boolean)	✓	✓	✓	"true" if the server requires the user to be logged in to join.
server_id	string	✓	✓
tags	string[]		✓	✓	List of server tags.

Application Version

Key	Type	Description
build_mode	string	"alpha", "headless", or "steam".
build_version	string(number)	The build version associated with the game version.
game_version	string	Game version running on the server, e.g. "0.14.21".
platform	string	OS the server is running on: "linux64", "mac", or "win64".

Mod Description

Key	Type	Description
name	string	ID of the mod.
version	string	Version string of the mod.

Error Message

This object is returned whenever there's been an error with your request.

Key	Type	Description
message	string	A short description of the error.

Endpoints

get-games

GET https://multiplayer.factorio.com/get-games

Returns the available Factorio game servers as a list of Server Description Objects, but only with the object keys marked as available with "get" in the table. Requires two GET parameters:

username	The factorio username associated with the auth token.
token	A valid auth token, as obtained using the Web Authentication API.

Exceptions

• "Missing username."
• "User not found."
• "Token doesn't match."

get-game-details

GET https://multiplayer.factorio.com/get-game-details/{game_id}

Returns more details about the server, where {game_id} is the server's game_id as seen in the response from the get-games endpoint. This endpoint doesn't require an authentication token.