Read the data string from ESP8266 without Internet

In my project I want read the string data from ESP8266 (Over the internet with MQTT cloud it is done) but without internet, Can anyone suggest how to read string data?

I am thinking to read string data with ESP8266 (Wifi), through SSID & Password connect to router without internet connection and with LAN connection on other port of router to computer . Is it possible to do?

Install a local MQTT broker instead of using the cloud one.

Or use esphome which does not need mqtt.

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