If you spend time on YouTube for marketing, outreach, or audience engagement, writing comments manually can slow everything down. This Tampermonkey script helps automate that process in a cleaner way.

The script pulls video info such as title, expanded description and sample comments directly from the page. It then sends the data to OpenRouter AI to automatically create a relevant comment for YouTube.

The interface is lightweight, draggable, and built for daily use. You can quickly generate, copy, regenerate, or auto-fill comments into the YouTube comment box without switching tabs.

Quick setup:

Install Tampermonkey extension
Create a new user script
Paste script and save it
Open Settings in the floating panel
Add your OpenRouter API key.
Choose your favourite AI model
Open YouTube video
Create comments in real time

Simple browser automation without extra software.

This is perfect for creators, marketers, researchers, or anyone working with web automation or repetitive engagement tasks. It also demonstrates how you can combine browser-based data extraction and web scraping workflows with AI tools for useful automation.

Features

Youtube Video Title and Description Grabber
Gather sample viewer comments
OpenRouter and AI to generate comments
Fast auto-write into comment field
Floating UI persistent
Model selection & custom prompts
Works directly on YouTube

This script is a simple example of how browser automation and AI can work together to speed up repetitive online tasks and be contextual and readable comments.