diff --git a/server/api/index.js b/server/api/index.js
index 78c2391..2cb3c3f 100644
--- a/server/api/index.js
+++ b/server/api/index.js
@@ -13,8 +13,12 @@ class APIMethods {
 		this.parent = parent;
 	}
 	
-	info (_, ___, __, cb) {
-		cb({ result: require("./server-info") });
+	info (con, req, cb) {
+		cb({ result: require("./server-info"), trace_id: req.trace_id, ended: true });
+	}
+	
+	authed (con, req, cb) {
+		cb({ result: require("./server-info"), trace_id: req.trace_id, ended: true });
 	}
 	
 	/*setSession (isEncrypted, address, { key, counter }, cb) {
@@ -34,11 +38,12 @@ class APIMethods {
 class API {
     constructor () {
 		this.methods = new APIMethods(this);
-		this.sessions = {};
+		this.sessions = new WeakMap();
     }
 	
 	decrypt (address, bytes) {
-		try {
+		throw new Error("Deprecated. Use TLS. If you see this error, please, add issue into: https://git.fullgream.tech/fullgream/ai-adventure-labs/issues");
+		/*try {
 			if (!global.config.server.secureMode)
 				// return Buffer.from([]);
 				return undefined;
@@ -48,10 +53,10 @@ class API {
 				this.sessions[address].decrypt(bytes);
 		} catch (err) {
 			return undefined;
-		}
+		}*/
 	}
 	
-    async exec (address, bytes, cb) {
+    async exec (connection, bytes, cb) {
 		const request = parseRq(bytes);
 		
 		if (request === undefined)
@@ -61,9 +66,18 @@ class API {
 		
 		if (typeof request === "object" && request !== null) {
 			const {
-				method
+				method,
+				trace_id
 			} = request;
-			this.methods[method]?.(false, address, request, cb);
+			if (!method)
+				return cb({
+					error: "method missed"
+				});
+			if (!trace_id)
+				return cb({
+					error: "trace_id missed"
+				});
+			this.methods[method]?.(connection, request, cb);
 		} else {
 			return cb({
 				error: "required JSON-object based request"
diff --git a/server/frontend/public/js/connect/api.js b/server/frontend/public/js/connect/api.js
index ff440f5..d6dacbd 100644
--- a/server/frontend/public/js/connect/api.js
+++ b/server/frontend/public/js/connect/api.js
@@ -1,28 +1,79 @@
 import { ServerAuth } from "/js/connect/auth.js";
 
-class ApiMethods {
+function randint(min, max) {
+	return Math.ceil((Math.random() * (max - min)) + min);
+}
+
+function getTraceId() {
+	const dict = "1234567890abcdefABCDEF";
+	return [...new Array(16)]
+		.map(() => dict[randint(0, dict.length - 1)])
+		.join("");
+}
+
+class ProtoApiMethods {
 	constructor (api) {
 		this.api = api;
 	}
 	
-	async info () {
+	async _protoMethod (rqdata, threadcb) {
 		const socket = this.api.socket;
+		const trace_id = getTraceId()
+		
 		const promise = new Promise((rs, rj) => {
 			socket.onmessage = (ev) => {
-				const data = JSON.parse(ev.data).result;
-				rs(data);
+				ev = JSON.parse(ev.data);
+				const data = ev.result;
+				return rs(data);
+				if (ev.trace_id === trace_id)
+					if (!!ev.ended)
+						return rs(data);
+					threadcb(data);
 			};
 			socket.onerror = (err) => rj(err);
 		});
 		socket.send(
-			JSON.stringify({
-				method: "info",
-			}),
+			JSON.stringify({ trace_id, ...rqdata }),
 		);
 		return await promise;
 	}
 }
 
+class ApiMethods extends ProtoApiMethods {
+	async _protoMethod (rqdata) {
+		throw new Error("_protoMethod allowed only into abstract class");
+	}
+	
+	constructor (api) {
+		super(api);
+	}
+	
+	async info () {
+		return await super._protoMethod({
+			method: "info",
+		});
+	}
+	
+	async authed () {
+		return await super._protoMethod({
+			method: "authed",
+		});
+	}
+}
+
+class ApiHTML {
+	constructor (api) {
+		this.api = api;
+	}
+	
+	async renderAuth (authMode) {
+		switch (authMode) {
+			default:
+				document.getElementById("server.area").innerHTML = '<div class="auth-window"><button>connect</button></div>';
+		}
+	}
+}
+
 export class ApiSocket {
 	constructor ({
 		isTLSmode, address, port
@@ -33,6 +84,8 @@ export class ApiSocket {
 		
 		this.socket = new WebSocket(`${!isTLSmode ? "ws" : "wss"}://${address}:${port}`);
 		this.methods = new ApiMethods(this);
+		
+		this.html = new ApiHTML(this);
 	}
 	
 	async run () {
diff --git a/server/frontend/public/js/connect/main.js b/server/frontend/public/js/connect/main.js
index 1882e26..554b154 100644
--- a/server/frontend/public/js/connect/main.js
+++ b/server/frontend/public/js/connect/main.js
@@ -45,10 +45,11 @@ const socket = new ApiSocket({
 	isTLSmode, address, port
 });
 socket.run()
-	.then(data => {
+	.then(async (data) => {
 		console.log("socket sends:", data);
-		document.getElementById("server-name").innerHTML = data.name;
 		document.title = data.name;
+		document.getElementById("server-name").innerText = data.name;
+		await socket.html.renderAuth(data.authMode);
 	})
 	.catch(err => {
 		console.error(err);