Open Source AI Chatbox Gemini

HttpService = game:GetService("HttpService")
TextChatService = game:GetService("TextChatService")
Players = game:GetService("Players")
LP = Players.LocalPlayer
LastMsg = nil

API_KEY = "YOUR API KEY HERE" 

-- get your api key here: https://aistudio.google.com/app/api-keys

MAX_DISTANCE = 15 

-- Maximum distance to respond to a player

function Say(text)
	text = text:sub(1, 190)
	coroutine.wrap(function()
		pcall(function()
			TextChatService.TextChannels.RBXGeneral:SendAsync(text)
		end)
	end)()
end

function Gemini(player, message)
	local body = HttpService:JSONEncode({
		contents = {{ parts = {{ text = message }} }}
	})
	local ok, res = pcall(function()
		return request({
			Url = "https://generativelanguage.googleapis.com/v1beta/models/gemini-2.0-flash:generateContent",
			Method = "POST",
			Headers = {
				["Content-Type"] = "application/json",
				["X-goog-api-key"] = API_KEY
			},
			Body = body
		})
	end)
	if not ok or not res or not res.Body then return end
	local success, data = pcall(function()
		return HttpService:JSONDecode(res.Body)
	end)
	if success and data and data.candidates and data.candidates[1] and data.candidates[1].content and data.candidates[1].content.parts then
		local text = data.candidates[1].content.parts[1].text
		if text then
			Say("[" .. player.DisplayName .. "]: " .. text:gsub("[\r\n]", " "))
		end
	end
end

TextChatService.OnBubbleAdded = function(msg)
	local src = msg.TextSource
	if not src or not src.UserId then return end

	local plr = Players:GetPlayerByUserId(src.UserId)
	if not plr or plr == LP then return end

	local c1, c2 = LP.Character, plr.Character
	if not c1 or not c2 then return end

	local h1, h2 = c1:FindFirstChild("HumanoidRootPart"), c2:FindFirstChild("HumanoidRootPart")
	if not h1 or not h2 or (h1.Position - h2.Position).Magnitude > MAX_DISTANCE then return end

	local t = msg.Text
	if t:gsub("%s+", "") == "" or t == "#" then return end

	local id = plr.UserId .. "|" .. t
	if id == LastMsg then return end
	LastMsg = id

	task.spawn(function()
		Gemini(plr, t)
	end)
end