About Knockin'
Knockin' turns a static bio link into an AI business card that can answer questions about you and your work. You add your content, links, and knowledge, then set boundaries for what the AI can use. Visitors ask questions and get replies in your voice, book time with you, and the tool remembers who stopped by for later follow-up.
Review
Knockin' launched this week on Product Hunt as a new entry in the link-in-bio and AI chatbot space. It's built by a team of seven makers using Codex 3.0 by OpenAI and Figma. The core idea addresses a familiar friction: introductions that stall once the moment passes, leaving questions unasked until it's too late to answer them well.
Key Features
- AI business card that replies to visitor questions using only the content and knowledge you've added
- Visitor memory that logs who stopped by, what they asked, and what caught their attention
- Direct booking integration so visitors can schedule time without leaving the card
- Multiple sharing formats including link, QR code, and email signature
- Content boundaries you control, restricting which information the AI can draw from
Pricing and Value
Pricing is not yet defined. The product page lists a "Free Options" tag, and the launch post invites users to create a Knockin' and share it. No paid tiers, subscription details, or future pricing structure have been published at this stage.
Pros
- Captures questions and visitor interest even when you're unavailable, preserving context for follow-up
- Lets you define exactly what information the AI can and cannot use in its replies
- Combines a link-in-bio page, AI Q&A, and scheduling in a single shared card
- Shows you what people ask about, surfacing patterns in how others perceive your work
- Shares through common channels-link, QR, email signature-without requiring an app install for visitors
Cons
- The AI uses one fixed voice per card; it doesn't adapt tone automatically for different visitor types like clients versus recruiters
- Analytics don't yet show which specific parts of a profile a visitor interacted with before following up
- Not well suited for people who need physical printed business cards today-the team is testing physical cards but hasn't launched them yet
Knockin' fits founders, freelancers, creators, and salespeople who want their bio to do more than sit there. The roadmap points toward multiple cards with distinct voices and deeper visitor journey analytics, which would expand its utility. For now, it's a focused tool that turns a single link into a conversation starter that keeps working when you step away.
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