Harpa.ai

Harpa.ai is a browser extension that puts an AI assistant and a browser automation engine on any web page. It opens with a keyboard shortcut and works with models from OpenAI, Anthropic, Google, Perplexity, DeepSeek, xAI and Meta, so one panel replaces several separate chat subscriptions. The feature set covers everyday web work. It summarizes YouTube videos, articles and PDFs, answers questions alongside Google Search with source citations, and drafts replies in Gmail, including categorizing incoming mail and summarizing long threads. A writing tool imitates the user's own style for emails, social posts, cover letters and articles, and can generate very long articles from an outline using a choice of writing frameworks. Over 100 ready made prompts cover SEO, copywriting, recruiting and e commerce. It can also monitor pages for changes, track price drops and stock alerts, and extract data from websites into Make, Zapier or n8n workflows. Users can bring their own API keys, connect existing ChatGPT, Claude or Gemini web sessions, or run local models. The vendor states it does not log conversations and is GDPR compliant. It suits marketers, researchers, recruiters and anyone who spends the day in a browser. The pricing page lists individual plans in Australian dollars: 20.90 per month billed annually for the entry plan with 75 megatokens a year, 31.90 per month billed annually for the Pros plan with 225 megatokens a year, and a one time payment of 352 for a lifetime single user plan with 30 megatokens. A separate tab covers team plans, with extra seats discounted 10 percent.