HARPA AI is a Chrome extension and NoCode RPA platform that leverages a hybrid AI engine with models like ChatGPT, Claude, Gemini, and Grok to automate web tasks, making AI aware of the current page via a sidebar accessible by Alt+A. It excels in summarizing web pages, videos, and PDFs, extracting structured data, tracking product prices and stock availability, monitoring competitor sites and legislation changes, and generating content for marketing, SEO, and social media. Running locally in the browser for privacy and speed, it supports multiple search engines, integrates with Zapier, Make.com, n8n, and Google Sheets, and offers customizable automations with notifications. Free tier provides basic features, with paid plans from $12/month unlocking unlimited commands, premium models, and advanced scheduling.