Harpa AI Overview
HARPA AI is a Chrome extension that combines two things most AI tools keep separate: a page-aware AI chat sidebar and a genuine web automation engine. HARPA stands for High Availability Robotic Process Automation, and that name is a clue to what makes it different. Where most AI browser assistants simply let you chat with a model in a side panel, HARPA can read the live page you are on, click buttons, fill in forms, extract structured data, monitor pages for changes, and chain all of that into multi-step automation recipes. It is part chatbot, part no-code robot for your browser.
What Is HARPA AI?
HARPA AI is a browser extension built by HARPA AI TECHNOLOGIES OY, a company based in Espoo, Finland. Once installed, it lives in your Chrome toolbar and opens a sidebar on any webpage. From there you can ask questions about the page in front of you, summarize a YouTube video, chat with a PDF, or switch over to the automation tab to build commands that act on websites on your behalf.
The hybrid AI engine is the core of the product. It understands the structure and semantics of web pages, reading the live DOM rather than a screenshot or a pasted excerpt. That means when you ask about a product page, HARPA sees the current price and stock status, not whatever the page looked like the last time you visited. It also means summaries and answers are grounded in the actual content, which noticeably reduces the guesswork and hallucinations you get from generic chatbots.
Page-Aware Chat: AI That Reads Where You Read
The everyday use case for HARPA is its page-aware chat. Open the sidebar on any article, PDF, or YouTube video and ask it questions about the content. You can request a summary, pull out specific data points, draft a reply to something you are reading, or rewrite a paragraph in your own voice. Nothing needs to be copied into a separate chat window, and you can switch between models mid-session without leaving the sidebar.
Supported models span the major providers: OpenAI’s GPT lineup, Claude, Google Gemini, DeepSeek, Perplexity, Meta Llama, and xAI’s Grok. How you connect to them is flexible. You can link your own ChatGPT browser session, plug in API keys from OpenAI, Claude, Gemini, or OpenRouter, or use HARPA’s managed CloudGPT connection, which is included with the paid S plans and provides a stable, non-country-restricted route to premium models without rate-limit headaches.
Writing and Content Work
HARPA ships with a large library of prebuilt prompts for writing tasks. It can draft and reply to emails, generate social media posts, write in eighteen different styles, and even mimic your own writing tone after analyzing your past writing. For SEO and marketing work, it researches keywords, builds content plans, and can generate long-form articles, refining and adding keywords at each step. There is also a Gmail assistant and a YouTube summarizer that extracts key takeaways from long videos in one click.
Web Automation: Where HARPA Stands Apart
The automation side is what separates HARPA from every other AI sidebar. An AI Command is an automation recipe made of steps: navigate to a page, click a button, extract messages, run them through GPT, send the result as an email. HARPA ships with more than one hundred preconfigured commands covering copywriting, SEO, recruiting, learning, and productivity, and you can create your own custom commands with parameters like {{page}}, {{selection}}, {{transcript}}, and {{gpt}} that chain requests together.
- Data extraction: scrape structured data from pages into CSV or JSON for research, lead lists, or competitor analysis.
- Page monitoring: watch products for price drops or restocks, track competitor websites, and monitor SERP pages, with notifications when things change.
- Scheduled runs: set commands to run on a schedule in the background, so monitoring and reporting happen without you touching the browser.
- Integrations: trigger Zapier, Make.com, n8n, or IFTTT webhook chains from your commands, push results to Google Sheets, and use the HARPA Grid API to run commands programmatically.
For large documents and long video transcripts that exceed a model’s token window, HARPA uses chunking, splitting content into smaller pieces processed one by one so even very long sources can be summarized or analyzed.
Privacy by Design
Privacy is one of HARPA’s strongest selling points. The extension runs locally in your browser and only reads web pages when you explicitly ask it to, such as posing a question in page-aware mode or running a page monitor. It does not store website data on remote servers, does not sell your data, and does not show ads. Prompts you enter are sent to your chosen AI provider, OpenAI, Google, or Claude, transparently for processing, which is unavoidable for any AI tool, but your browsing data itself stays on your machine. The company follows GDPR principles as a Finnish developer.
Who Is It For?
HARPA fits a few clear profiles. Researchers and students use it to summarize papers, articles, and videos without leaving the page. Marketers and SEOs use it for keyword research, competitor monitoring, and content generation. Freelancers and professionals use it to draft emails, review documents, and automate repetitive web chores like form filling and data collection. Online shoppers and deal hunters set up price and stock monitors on e-commerce sites. If your work lives in the browser and involves repeated reading, summarizing, or data-gathering tasks, HARPA can save real hours each week.
Pricing
HARPA runs on a freemium model with a token system called Megatokens. One Megatoken equals roughly one million input tokens on efficient models, or about 750,000 words of English text, and covers around one hundred page-aware command runs or a few hundred premium chat messages. The free Demo plan includes web session connections to ChatGPT, Claude, and Gemini limited to ten messages a day, plus one hundred total AI command runs. The S1 plan starts at $12 per month billed annually and adds the CloudGPT connection to premium models, unlimited power messages, cloud command storage, and chat history. S2 at $19 per month triples the token allowance and adds advanced automation features like scheduled runs and loop steps. The X plan is a $240 one-time payment for lifetime access, aimed at users who prefer bringing their own API keys and managing their own inference costs.
Verdict
HARPA AI is one of the most capable browser-based AI tools you can install, and its page-aware automation genuinely has few competitors. The combination of multi-model chat, live page reading, and no-code web automation makes it a serious productivity asset rather than a novelty sidebar. That said, it is not a beginner toy: the free tier is limited, the full power of the automation side takes time to learn, and its pricing rewards users who understand what they will actually use. For power users who live in their browser, it earns its place in the toolbar.
Key Features
- Page-aware AI chat that reads live web pages, PDFs, and YouTube videos
- Web automation with 100+ preconfigured AI Commands and custom command builder
- Price, stock, and competitor website monitoring with change notifications
- Multi-model support: GPT, Claude, Gemini, DeepSeek, Perplexity, Grok, Llama
- Data extraction from web pages into CSV and JSON formats
- Scheduled command runs and background automations
- Zapier, Make.com, n8n, and IFTTT webhook integrations plus HARPA Grid API
- YouTube video summarizer, Gmail assistant, and SEO keyword research tools
Harpa AI Pricing
| Plan | Price |
|---|---|
| Demo | Free |
| S1 | $12/mo (billed annually) |
| S2 | $19/mo (billed annually) |
| X (Lifetime) | $240 one-time |
Last updated on September 21, 2026 — always confirm on the official site.
Harpa AI Pros & Cons
✓ Pros
- Rare combination of page-aware AI chat and genuine browser automation
- Reads live page DOM, so answers reflect current prices, stock, and content
- Privacy-centered: runs locally, reads pages only on explicit action, no ads
- Flexible model connections: browser sessions, API keys, or managed CloudGPT
- Lifetime X plan option avoids endless subscriptions for heavy users
✕ Cons
- Chrome-only; no Firefox or other browser versions yet
- Most premium AI features require your own AI account/API key or a paid plan
- Free demo tier is restrictive at 10 messages per day
- Building advanced multi-step AI Commands has a real learning curve
- No refunds offered; billing quirks and ad-blocker conflicts reported by some users
Harpa AI FAQs
Is Harpa AI free?
What does Harpa AI do?
Which AI models does Harpa AI support?
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What is a Megatoken in Harpa AI?
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