All‑in‑one Chrome extension that brings ChatGPT, Claude, Gemini, Perplexity and more to any web page with AI‑driven automation.
HARPA AI is a hybrid AI‑engine browser extension that combines the power of multiple large language models (OpenAI ChatGPT, GPT‑4o, Anthropic Claude 3.7, Google Gemini 2.5, Perplexity, DeepSeek, Meta Llama) with a built‑in web‑automation engine. By pressing Alt + A you can summon any of these models on any web page, let them read the content, extract data, answer questions, or trigger actions such as clicking, form‑filling, and IFTTT/Zapier workflows.
| Domain | What HARPA can do | Example Prompt |
|---|---|---|
| Productivity | Summarize articles, extract tables, rewrite text, generate meeting agendas. | Summarize this article in 3 bullet points |
| Email & Communication | Categorize inbox, draft replies in your tone, generate LinkedIn messages. | Write a polite reply to this client email |
| Marketing & SEO | Keyword research, SEO audit, content calendar, price‑drop alerts. | Find long‑tail‑keywords for “AI browser extension” |
| Copywriting | Generate blog outlines, social media posts, ad copy, Midjourney prompts. | Create a 5‑point LinkedIn post about AI automation |
| Development | Extract code snippets, explain errors, refactor between languages. | Convert this Python function to JavaScript |
| Learning | Language practice, grammar checks, quiz generation. | Explain the difference between “affect” and “effect |
| E‑commerce | Track product price changes, monitor stock, scrape competitor listings. | Alert me when this Amazon product drops below $50 |
What is HARPA AI? A browser extension that merges large language models with web automation, turning any site into an AI‑powered workspace.
Is there a free tier? Yes – a basic free plan with limited premium features; paid S plan starts at $12 / month (annual).
Do I need an OpenAI account? Only for GPT‑based on features; you can also use Claude, Gemini, DeepSeek, or the built‑in CloudGPT connection.
How does privacy work? HARPA runs locally, never logs page content. Prompts are sent directly to the selected LLM provider and are not stored by HARPA.
Can I use it on multiple browsers? Currently Chrome‑based browsers (Chrome, Brave, Edge, Opera). Firefox support is planned.
What automation integrations are available? Zapier, Make.com, n8n, IFTTT, custom webhooks, and built‑in page monitors.
How to switch models?
Use the model selector in the chat panel or type shortcuts like -4 for GPT‑4, -c for Claude, etc.
