HARPA AI is a browser-based agent for page-aware chat, web automation, monitoring, writing, summarization, extraction, research, and reusable commands across supported AI providers. Users should review browser permissions and automated actions, protect account and page data, verify facts, limit monitoring frequency, and inspect every command before it runs. A Free plan is available. The individual annual plan costs an effective $12 per month, Pros costs $19 per month annually, and the X lifetime plan costs $240 once; AI token top-ups, seats, and connected model costs can be separate.
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Prices, plans and limits change often, and AI output can be incomplete or wrong — check the terms at checkout and verify anything you publish or ship. Disclaimer · How we review tools