What is HARPA AI?
HARPA AI is an AI browser extension for Chrome, Edge, Brave, Opera and Firefox that combines a chat assistant with web automation. Pressing Alt+A opens models such as GPT, Claude, Gemini and DeepSeek on any page to summarize, write or extract data, and it can monitor pages for price or content changes.
Copying page text into a separate chatbot breaks your flow and loses context. This extension reads the page you are on, so it can summarize a YouTube video, reply to an email thread or pull data from a table in place. Beyond chat, it runs 100+ ready-made commands, watches pages for price drops or updates, and triggers Zapier or Make workflows. You can use its cloud models or your own API keys.
Main Features
- Opens an AI chat on any web page with Alt+A, using models such as GPT, Claude, Gemini, DeepSeek, Llama and Perplexity.
- Summarizes YouTube videos, articles and PDFs.
- Categorizes email, summarizes threads and drafts replies.
- Scrapes page data and fills in forms for web automation.
- Monitors product prices, stock and page changes, and notifies you.
- Includes 100+ ready-made commands for writing, SEO research and productivity.
- Triggers Zapier and Make.com workflows from the browser.
- Accepts your own API keys as an alternative to its hosted models.
How to Get Started with HARPA AI
- Install the extension from your browser's extension store.
- Open any page and press Alt+A to launch the sidebar.
- Ask about the page or run a ready-made command, such as summarizing a video.
- Set up a page monitor or a custom command for tasks you repeat.
HARPA AI Pricing
The free demo plan allows 10 web-session messages a day and up to 100 command runs in total. Paid plans start at about $12 per month billed annually, and a one-time lifetime plan works with your own API keys.
Who Should Use It?
- Marketers doing keyword research and content planning
- Sales professionals extracting leads and data from web pages
- Online shoppers tracking prices and restocks
- Students summarizing lecture videos and articles
- Professionals who want faster email replies
HARPA AI Alternatives
- HyperWrite AI: writing assistant with its own browser agent
- TinyWow AI: free web tools without installing an extension
- Frase AI: dedicated SEO content research and optimization
Frequently Asked Questions
Is HARPA AI free?
There is a free demo plan limited to 10 messages a day and 100 total command runs. Paid plans begin around $12 per month billed annually and include hosted access to models like GPT, Claude and Gemini, while a lifetime plan uses your own API keys.
Which browsers does HARPA AI support?
It runs as an extension on Chrome, Edge, Brave, Opera and Firefox. Once installed, press Alt+A on any page to open the assistant with that page's content available as context.
Is it private?
The company says the extension runs locally and does not store your data, with AI requests going directly to model providers and not retained on its servers. It also lists ISO 27001 and GDPR certifications.