Harpa AI is a browser extension for Chrome that embeds a hybrid AI engine combining ChatGPT, Claude, Gemini, DeepSeek, Perplexity, and Grok directly into any webpage. It can summarize pages and videos, monitor competitor prices or SERP rankings, automate form filling, write and reply to emails, and execute multi-step web workflows via custom commands. It is aimed at marketers, writers, and knowledge workers who want AI assistance without leaving the browser. Key features: - Access to multiple AI models (GPT, Claude, Gemini, DeepSeek, Grok) in one interface - Page and YouTube video summarization with Q&A - Automated web monitoring for prices, SERP positions, and competitor changes - Predefined and custom command library for repetitive tasks - Email composition, reply generation, and DM automation - One-time lifetime plan (X-tier) with bring-your-own API key support
Free tier available. S plan from $12/month (annual). X-tier lifetime access: $240 one-time payment.