What is HARPA AI?
HARPA AI is a browser extension that places an AI assistant on web pages. It connects with models and services from OpenAI, Anthropic, Google, DeepSeek, Perplexity, Meta, and others. Users can ask questions about the current page, summarize content, draft text, extract information, and build browser automations.
The extension works with websites, YouTube videos, PDFs, search results, email, and online forms. It supports web-session connections, HARPA cloud models, user-provided API keys, and local models such as Meta Llama. According to its privacy information, HARPA runs locally, does not store conversations or actions, and is GDPR compliant.
Key Features
- Page-aware AI chat: Opens with a keyboard shortcut on any page and uses the current content as context for questions, explanations, rewriting, and research.
- Content summarization: Extracts key points from web pages, PDFs, blog posts, and YouTube videos, with support for video timestamps and follow-up questions.
- Writing assistance: Drafts and edits emails, social posts, cover letters, articles, agendas, and other text while offering grammar, translation, and rephrasing shortcuts.
- Browser automation: Creates workflows that navigate sites, collect data, click controls, complete forms, run scheduled commands, and connect with Zapier, Make, or n8n.
- Website monitoring: Checks pages for changes and can notify users about updates, product availability, or price reductions across online stores.
- Reusable commands: Includes more than 100 page-aware automations and lets users create, customize, store, and share commands through workspaces.
Use Cases
- Summarize research materials, search results, PDFs, and long videos without leaving the browser.
- Draft contextual email replies, marketing copy, social posts, resumes, cover letters, and long-form articles.
- Perform SEO research, identify long-tail keywords, audit content, and prepare content calendars or reports.
- Extract listings, prospects, and other structured information while automating repetitive website actions.
- Monitor product pages for price changes, restocks, or other updates.
Pricing
HARPA offers a free Demo plan with up to 10 web-session messages per day, 100 total AI command runs, custom and predefined commands, and web monitors. Annual paid plans are listed at €14.30 and €19.60 per month when billed annually. A single-user lifetime option costs €238 as a one-time payment. The pricing page also lists an optional 20-Megatoken add-on for €25.50. Limits, token allowances, scheduling, and advanced automation differ by plan.
Who Is It For?
HARPA AI is designed for researchers, writers, marketers, SEO specialists, recruiters, developers, students, online shoppers, and teams that want AI assistance and repeatable automation directly inside their browser.
