Send a value to Adafruit io by using just URL

#RaviPujar Sir you can you please tell me how to send a value to a feed directly by using URL but without using Fiddler. Any one who have any type of knowledge, please help me.

You cannot do by URL as URL is a HTTP GET and IOT servers expect a HTTP post or MQTT publish to receive data.

you can try with a software like Postman, it will allow you to define each part of the message and help you understand what you need to write in the esp8266