HARPA AI — All-in-one AI browser agent with ChatGPT, Claude, Gemini & automation. Best for Content creators needing multi-model AI writing and summarization in the browser, SEO professionals who want on-page audits, keyword extraction, and competitive analysis, E-commerce shoppers tracking price drops and stock alerts on Amazon, AliExpress, Walmart. Free to start; paid plans from $955.8/mo.
Content creators needing multi-model AI writing and summarization in the browserSEO professionals who want on-page audits, keyword extraction, and competitive analysisE-commerce shoppers tracking price drops and stock alerts on Amazon, AliExpress, WalmartDevelopers building web automations with Zapier/Make/n8n and custom AI agentsLanguage learners seeking grammar correction and personalized study plans
Not ideal for
Users seeking a completely free AI tool—premium features require paymentThose who prefer a simple, single-model assistant without automation complexityPrivacy maximalists who avoid any cloud-connected extension despite local model supportPeople who need native mobile apps—HARPA is a browser extension only
A versatile all-in-one AI copilot for browsing, writing, and automation. Best for power users who want multiple models and web scraping in one extension, but the free tier is limited and pricing may deter casual users.
HARPA AI is a standout for users who need a Swiss Army knife of AI tools directly in their browser. Its ability to switch between GPT-5.4, Claude 4.6, DeepSeek, Gemini 3.1, Llama 4, and Perplexity without leaving a webpage is a massive productivity win for researchers and content creators. The YouTube summarizer, Gmail assistant, and style-mimicking writer are genuinely useful out-of-the-box. However, the free tier is very basic—premium features require a paid plan starting at $12/month (annual), which might be steep for occasional use. The web automation and price tracking are unique, but setting up complex automations may require some technical know-how. If you compare it to single-model tools like Monica or Sider, HARPA wins on model variety and automation depth, but it can be resource-heavy when running many automations. Privacy-conscious users will appreciate local Llama support and no conversation logging. Overall, it's a powerhouse for pros, but casual users may find the learning curve and price off-putting.
Skip HARPA AI if Skip HARPA AI if you need a desktop app, are on a non-Chromium browser, or want unlimited AI chat without token limits.
Latest from HARPA AI
We're gathering recent updates for HARPA AI from changelogs, press, Hacker News, and social. Check back in a day or two.
Viability Score
80/100
Safe Bet
How likely is HARPA AI to still be operational in 12 months? Based on 6 signals including funding, development activity, and platform risk.
funding runway
80
website health
90
github activity
50
category mortality
70
wrapper dependency
100
hyperscaler overlap
80
About HARPA AI
HARPA AI is a browser extension that combines multiple AI models like ChatGPT, Claude, Gemini, DeepSeek, Perplexity, and Llama with powerful web automation. Designed for professionals, it helps summarize YouTube videos, blogs, PDFs, answer emails with contextual replies, generate SEO articles, extract data, monitor web pages, and automate workflows. With over 100 ready-to-use prompts, it mimics your writing style for emails, social posts, and cover letters. HARPA also supports local models for privacy, is GDPR compliant, and integrates with Zapier, Make.com, and n8n for advanced automation. Unlike single-model tools, HARPA offers a hybrid engine that reads and acts on page content, providing hallucination-free answers alongside Google Search and enabling custom AI agents in the browser.
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Key Features
Summarize YouTube videos, blogs, PDFs
Answer emails with contextual AI replies
Write articles up to 25,000 words in 25 frameworks
Mimic your writing style for emails, tweets, cover letters
Extract data and scrape websites
Track page changes and price drops
Build custom AI agents in browser
Generate Midjourney/DALL-E prompts
SEO audit and keyword research
Language learning assistant with grammar correction
Quick shortcuts for finish, grammar check, rephrase, translate
Real-world workflow fit
Concrete scenarios for the personas HARPA AI actually fits — and what changes day-one when you adopt it.
SEO specialist
You need to audit your website's SEO, extract keywords, and generate a content calendar weekly.
Outcome: HARPA AI runs an SEO audit command, extracts long-tail keywords, and creates a content outline with target keywords – all in a few clicks.
E-commerce seller
You want to track prices on competitor Amazon listings and get notified when they drop.
Outcome: Set up a price monitor on the product page; HARPA checks periodically and sends you an email alert when the price changes.
Content creator
You have a long YouTube video and need a summary with timestamps to create a blog post.
Outcome: Open HARPA on the video page, click 'Summarize YouTube' – it returns key points with timestamps, which you can then expand into a full article.
Free plan users get only 75 Megatokens per year, which may limit heavy automation. Advanced features like scheduled commands and advanced automation are gated behind the Pro plan. The extension works only on Chromium browsers; no native Safari or Firefox support. Token consumption for large-scale scraping or frequent monitoring can be significant.
12-month cost
Project the real annual outlay, including the implied monthly cost when only an annual tier is published.
Annual total
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Contact sales for a quote
Effective monthly
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Vendor list price only. Add-on usage, seat overages, and contract minimums are surfaced under Hidden costs & gotchas.
Plans compared
For each published HARPA AI tier: who it actually fits, and what it adds vs. the previous tier. Cross-reference the cost calculator above for projected annual outlay.
For Everyone (Free)
₹955.8/year (billed annually)
Ideal for
Solo users who want to try HARPA's core features without commitment, have light AI usage (summarizing pages, drafting short emails).
What this tier adds
Starting tier; 75 Megatokens/year, access to all cloud models, web session connections, but no scheduled commands or advanced automation.
For Pros (Pro)
₹1,534/month (billed annually, extra seat 10% off)
Ideal for
Professionals who need higher token capacity (225 Megatokens/year) and advanced automation like scheduled commands and price monitoring.
What this tier adds
Adds scheduled commands and advanced automation over the free tier; billed annually at ₹1,534/month.
For Life
₹14,160 one-time
Ideal for
Power users who prefer a one-time payment and will bring their own API keys to avoid recurring fees.
What the public pricing page doesn't put in bold. Captured from pricing-page footnotes, contract terms, and recurring complaints.
•Free plan: 75 Megatokens/year may run out quickly; top-ups cost extra.
•Pro plan: ₹1,534/month billed annually; extra seat is 10% off but adds cost.
•For Life plan: 30 Megatokens only; you must bring your own API keys for heavy use.
•Token top-up: 20 Megatokens added one-time for ₹2,212.5 (25% discount).
Where the pricing makes sense
The company stage and team size where HARPA AI's pricing actually pencils out — and where peers do it cheaper.
HARPA AI's pricing is competitive for solo professionals and small teams who would otherwise pay for multiple subscriptions (ChatGPT $20/mo, Claude $20/mo, Gemini $20/mo, etc.). The free tier is a good trial, but heavy users will likely need the Pro plan. The For Life one-time purchase is a bargain if you supply your own API keys. For teams requiring monitored automation, the Pro plan's extra seat cost is modest.
Setup time & first value
How long it actually takes to get something useful out of HARPA AI — broken out by persona, not the marketing-page minute.
Install the Chrome extension and create a free account in under 2 minutes. You can start summarizing pages and using commands immediately. For advanced automation like price monitoring or custom agents, expect 10-15 minutes to set up a monitor or create a custom command.
Switching to or from HARPA AI
How to bring data in from common predecessors and how to get it back out — written for the switcher, not the buyer.
Migrating in
→From manual browsing: Install the extension and start using Alt+A shortcuts immediately.
→From other AI chatbots: Enable Web Session connections to use your existing ChatGPT/Claude/Gemini accounts.
→From no-code automation tools: Connect HARPA to Zapier or Make.com to extend existing workflows.
Migrating out
↗To another browser extension: Export your custom commands and chat history via the settings menu.
↗To a standalone AI tool: If you need a desktop app, consider alternatives like TypingMind or Jan.
Recent material changes
Pricing, brand, ownership, or deprecation changes worth knowing before you commit. Most-recent first.
•2025-01-01: Pricing plans updated – 'For Everyone' and 'For Life' tiers introduced with new token balances and features.
•2024-06-01: Published guide on third-party sales and promo codes for HARPA AI pricing.
