HARPA AI
Summary
Switching between five browser tabs — one for ChatGPT, one for your inbox, one for the page you're actually reading, two more for research — is the default workflow for most knowledge workers, and it costs more hours than anyone tracks. HARPA AI collapses that stack into a single Chrome extension, bringing GPT, Claude, Gemini, DeepSeek, and Llama to the page you're already on.
The extension activates on any webpage via a keyboard shortcut and surfaces contextual AI actions tied to what's on screen — summarize this thread, draft a reply in your tone, extract this table, monitor this price. Web automation tasks like form-filling, data scraping, and page-change alerts run without you staying at the keyboard. The privacy architecture is the real differentiator: conversations are not logged by the vendor, local models are supported, and GDPR compliance is vendor-stated. The ceiling appears when automation sequences grow complex — multi-step conditional flows that depend on dynamic page states push against what the extension model can reliably handle. Teams building more than simple linear automations typically reach for a dedicated orchestration layer alongside it.
Bottom line: The right pick for a content marketer or recruiter who lives in their browser and wants AI context without leaving the page — a harder sell for an engineering team that needs conditional branching logic across dynamic sites, where the extension layer breaks before the workflow does.
Pricing Plans
SubscriptionLast verified 2 months ago- Price
- S2 Plan costs $19 per month
- Free Tier
- Access ChatGPT, Claude, Gemini on web session connections, limited to 10 messages a day. Up to 100 total AI command runs. Access to predefined and custom commands, and web monitors.
Everyone (S1)
For Everyone
- 75 Megatokens / year
- Cloud Models: GPT-5.4, Sonnet 4.6, Gemini 3.1 Pro, DeepSeek V3, Perplexity Pro, Grok 4.1, Llama 4
- Web Session Connections
- AI Vision Features
- Summarize PDFs and Files
- Chat History Across Devices
- Create Reusable Commands
- Fine-Tune Default Commands
- Monitor Prices and Pages
Pros (S2)
Popular for Pros
- 225 Megatokens / year
- Cloud Models: GPT-5.4, Sonnet 4.6, Gemini 3.1 Pro, DeepSeek V3, Perplexity Pro, Grok 4.1, Llama 4
- Web Session Connections
- AI Vision Features
- Summarize PDFs and Files
- Chat History Across Devices
- Create Reusable Commands
- Fine-Tune Default Commands
- Monitor Prices and Pages
- Schedule Commands
- Advanced Automation
Life (X)
For Life - paid once, single user only
- 30 Megatokens
- Unlimited Web Session connections for life
- Bring your own API keys to control costs
- Cloud Models access
- All features included
View full pricing on harpa.ai →
Pricing may have changed since last verified. Check the official site for current plans.
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Pros
Sign in to edit- Multi-model access — GPT, Claude, Gemini, DeepSeek, Llama — from a single keyboard shortcut on any page, so you stop paying for separate subscriptions and stop losing context switching tabs mid-task.
- Page-aware context means the AI reads what you're looking at before responding, so summaries, drafts, and extractions are tied to the actual content rather than requiring you to copy-paste it into a separate chat window.
- No conversation logging and support for local Llama models, so teams processing sensitive data avoid the exposure that comes with routing everything through a third-party cloud service.
- Web automation that runs unattended — price monitoring, page-change alerts, form-filling sequences — so recurring manual checks across dozens of URLs stop consuming working hours.
- Native integration hooks for Zapier, Make.com, and n8n, so scraped data and triggered automations connect to the rest of a workflow stack without writing a custom API wrapper.
Cons
Sign in to edit- Conditional automation logic — branching based on what a page actually returned, not what you expected it to return — is not reliably supported by the extension model. Teams building anything beyond linear sequences hit this wall quickly and end up maintaining a separate automation platform (n8n, Make.com) to handle the branching, at which point HARPA becomes the data-collection layer, not the automation layer.
- The extension is Chrome-bound and cloud-hosted with no self-hosted option, so teams with strict infrastructure requirements — air-gapped environments, enterprise IT policies that block browser extensions, or deployment targets beyond Chrome — cannot use it at all and switch to API-based agents they control.
- Writing style mimicry degrades when the volume of content is high and the output format varies. The vendor states the tool generates articles up to 25,000 words, but community reports suggest tonal consistency across long-form pieces with multiple sections requires manual review passes — acceptable for a solo blogger, a problem when a content team is publishing at volume and expecting consistent brand voice without editing overhead.
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About
- Platforms
- Chrome, Brave, Opera, Edge, and Chromium browsers
- API Available
- Yes
- Self-Hosted
- No
- Last Updated
- 2026-06-09T05:26:26.319Z
Best For
Who it's for
- Users paying $20/month to multiple AI services and constantly tab-switching between them
- People who value privacy and data control and are uncomfortable with cloud-based AI services that process everything on remote servers
- Heavy users who live in their browser, constantly interact with online content, process hundreds of web pages weekly, manage multiple email accounts, create regular content, or run ongoing web monitoring tasks
- Content creators, marketers, SEO specialists, recruiters, and researchers
- Anyone who wants to save time and work smarter online, especially those who often read, write, or manage emails on the web
What it does well
- Content creation and blogging—researching faster, repurposing YouTube content, or generating 25,000-word articles
- Sales and recruiting—automating data extraction from websites for prospecting, drafting tailored emails and LinkedIn messages, and assisting in reviewing resumes and job offers
- SEO and content marketing—streamlining keyword research, content outlining, drafting, and generating SEO-optimized articles and performing AI-driven SEO audits
- Competitive monitoring and price tracking—automating tracking of page updates, monitoring price drops and stock alerts on e-commerce sites, and facilitating data scraping
- Web summarization—summarizing web pages, blogs, long emails, conversations, and YouTube videos
Integrations
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Frequently Asked Questions
- Is HARPA AI free?
- HARPA AI has a permanent free tier alongside paid upgrades (paid plans from S2 Plan costs $19 per month). You can keep using a baseline version indefinitely without paying.
- Is HARPA AI open source?
- No — HARPA AI is a closed-source tool. Source code is not publicly available.
- Does HARPA AI have an API?
- Yes. HARPA AI exposes a developer API. See the official documentation at https://harpa.ai for details.
- When was HARPA AI released?
- HARPA AI was first released in 2021.
- What platforms does HARPA AI support?
- HARPA AI is available on: Chrome, Brave, Opera, Edge, and Chromium browsers.
Hours Saved & ROI Stories Community
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Curated lists that include this category
HARPA AI is a browser extension that embeds a multi-model AI assistant and a web automation engine directly into the Chrome environment. The core workflow: press Alt+A on any page — a Google search result, a YouTube video, a Gmail thread, an e-commerce listing — and HARPA reads the page context, then lets you summarize, draft, extract, or automate against it. The vendor states it is compatible with OpenAI GPT, Anthropic Claude, Google Gemini, DeepSeek, Perplexity, and Meta Llama, including locally-run Llama models, switchable per session.
The privacy posture separates HARPA from most browser-based AI tools. The vendor states conversations and actions are not logged, local model support means data can stay off remote servers entirely, and the product is described as GDPR compliant. For teams in regulated industries or individuals processing sensitive client data, this is not a footnote — it is the reason they chose this tool over a cloud-only alternative.
The use case spread is wide: 25,000-word SEO articles generated from outline to chapter with keyword injection at each step, Gmail inbox triage and reply drafting that mirrors your writing style, price-drop and back-in-stock alerts across Amazon and AliExpress, LinkedIn outreach drafting, and page-change monitoring with notifications. Integrations via Zapier, Make.com, and n8n allow the browser agent to be triggered externally or to push scraped data downstream. The automation engine handles navigating pages, clicking elements, and filling forms — but the docs describe these as sequential automations; teams expecting conditional branching based on variable page states will find the model constraining and often add a dedicated automation platform to handle logic the extension cannot.
Over 100 pre-built prompt automations cover marketing, SEO, recruiting, copywriting, and productivity tasks, which reduces setup time for standard workflows. Custom GPT agents can be imported and given access to page content and search functions, so teams with existing agent configurations are not starting from scratch.