Server

Text values are text snapshots.

Connection

Function	Returns
`server.address()`	Server address, `nil` in singleplayer
`server.ping()`	Your ping in ms
`server.brand()`	`"vanilla"`, `"paper"`, …; `nil` until the server says
`server.session()`	Number naming the current world, `nil` outside one
`server.disconnect(reason)`	Leaves the server showing `reason` (string or text); `false` when not connected

server.session() changes on every join, reconnect, server switch and dimension change. Keep it next to cached results and drop them once it differs; the world_change and disconnect events tell you the moment it happens, but only while the module is on.

local session, found = nil, {}

module:event("tick", function()
    if server.session() ~= session then
        session, found = server.session(), {}
    end
end)

Tab list

Function	Returns
`server.tablist.header()`	Custom header, or `nil`
`server.tablist.footer()`	Custom footer, or `nil`
`server.tablist.entries()`	Listed players in tab order

An entry is {name, uuid, display_name, ping, gamemode}: account name, the rendered row with team styling, latency in ms, and a gamemode like "survival".

for i, entry in ipairs(server.tablist.entries()) do
    print(i, entry.display_name:string(), entry.ping .. "ms")
end

Boss bars

server.bossbars() returns every visible bar in display order as {uuid, name, percent, color, style}:

name is a text component
percent runs 0..1
color is "pink" · "blue" · "red" · "green" · "yellow" · "purple" · "white"
style is "progress" · "notched_6" · "notched_10" · "notched_12" · "notched_20"

for _, bar in ipairs(server.bossbars() or {}) do
    print(bar.name:string(), math.floor(bar.percent * 100) .. "%")
end