Knockin turns your bio into an AI business card people can chat with. Add your work, links, and content. It learns what you do and answers questions in your voice. Visitors can book time with you right away, even when you’re away. Knockin remembers who stopped by, so you know who to follow up with. This cuts down on back and forth and gives both sides more context before a call.
Do you also offer a printing service along with that? I mean, once someone is using your cards, exporting and printing the physical form would create the whole ecosystem.
I’m curious about the voice feature. Can users make the responses more casual or professional depending on who is visiting?
Can I see which parts of my profile someone interacted with before following up?
Turning a bio into something people can actually interact with feels much more useful than a static list of links.👀
congrats on launch, I’ll try it out later, hope somebody will knock knock knocking at my door
As a freelancer, I literally say the same 3 sentences about my background on every single intro call lol. If this actually gets people up to speed before we even hop on, that's a real win. Also smart that you added a QR code + email signature, that's usually where these tools die, nobody actually shares them
Hey Product Hunt 👋 I’m He Zhao, founder of Knockin.
Knockin' is live today, and we’re so excited to finally open the door! 🚪
I started building Knockin after noticing how often a good introduction went nowhere. I’d meet someone interesting and exchange a profile or business card. The questions usually came later, after the moment had passed.
I wanted every introduction to leave more room for curiosity.
Knockin‘ is an AI business card that replies. It keeps your knowledge alive and ready to speak, even when you’re away.
Add your work, links, content, and knowledge. You choose what Knockin‘ can use and set the boundaries for its answers.
Visitors can:
Ask questions about you and your work
Get answers in your voice
Discover what matters to them
Book time with you directly
Every question leaves useful context. Knockin‘ remembers who visited, what they asked, and what caught their attention. When you follow up, you can continue from where the conversation left off.
Over time, those questions also show you how others see your work and what they want to understand better.
You can share your Knockin‘ through a link, QR code, or email signature.
We built Knockin’ for founders, freelancers, creators, salespeople, and anyone whose story deserves more space than a static bio can offer.
👉 Create your Knockin‘, share it, and see what people ask.
We’d love your feedback: what’s the first question you’d want your AI business card to answer?
Thank you for celebrating this launch with us. The door is open. Come knock! 🚪
About Knockin' on Product Hunt
“Turns your static bio into an AI business card that replies.”
Knockin' launched on Product Hunt on September 8th, 2026 and earned 125 upvotes and 14 comments, placing #4 on the daily leaderboard. Knockin turns your bio into an AI business card people can chat with. Add your work, links, and content. It learns what you do and answers questions in your voice. Visitors can book time with you right away, even when you’re away. Knockin remembers who stopped by, so you know who to follow up with. This cuts down on back and forth and gives both sides more context before a call.
Knockin' was featured in Productivity (660.1k followers), Artificial Intelligence (477.9k followers) and Social Networking (1.8k followers) on Product Hunt. Together, these topics include over 280.4k products, making this a competitive space to launch in.
Who hunted Knockin'?
Knockin' was hunted by Zac Zuo. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Knockin' stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Zac Zuo
This is very suitable for me. I need to introduce myself and my project to many people.