The missing sales layer.
Built for agencies.
One super-intelligent agentic platform for all your clients' website and marketing needs. White-label it, resell it, keep them happy.
An army of AI Agents runs the whole funnel, from a stranger who has never heard of you to a meeting on your calendar.
Pipeline before the visit. Agent K goes and finds the people already looking for what you sell, and brings them in with the reason they are likely to buy.
Not a cold list. A LIVE one.
Agent K hunts buyers who are in the market right now, not names scraped from a database three years ago.
Every link knows who clicked it.
Leads land in your GoHighLevel campaign carrying a Knock Knock token. The second one of them clicks, you know exactly who came back.
Agents working this stage
They never filled in a form. You still get their name, their company, and every single page they read before they left.
The list no other tool can build.
Anonymous visitors become named leads. The curious traffic you already paid for turns into a real pipeline instead of a bounce.
Every signal gets a score.
Opens, clicks, visits, replies, minutes on pricing. It all rolls into one live intent score, so you stop guessing who is actually interested.
Agents working this stage
Was: anonymous, 4 minutes on site, no form filled. Now: a named lead in your CRM, scored, and nurturing.
The moment they land, someone is there. Midnight, Sunday, whenever they show up. And whoever greets them already knows exactly who they are.
No cold openers.
The chat agent does not say "how can I help you today." It opens knowing their name, their company, and the six emails they read last week.
However they reach out.
They can type, talk to the voice agent on the site, or just call your number. The inbound agent picks up the calls nobody was there to take.
Agents working this stage
"Hi Peter. Last time you were on the pricing page. Want me to walk you through what the mid tier actually includes, or would you rather I get someone on the phone for you?"
Read the whole file before it sent a single wordThe follow up that already knows them. Every call, every message, every email goes out with the entire history behind it. Nothing lands cold.
Reactivation that actually converts.
Everyone runs follow up campaigns. Yours goes out having read the contact's whole file first, so it never sounds generic and never starts from zero.
The right channel, not every channel.
If they answer on WhatsApp, that is where it goes. If they only ever pick up the phone, it calls. It follows the behaviour, not a template.
Agents working this stage
"Peter is on his third visit, spent 4 minutes on pricing, re-opened the demo email twice, and replied on WhatsApp asking how onboarding works. That is warm and ready to pitch. He engages most on WhatsApp."
Want me to call him, or draft the message?They are on your pricing page right now. Warm is a state. Very warm is a moment, and a moment does not wait for your Monday report.
Reach them while it is still open.
Auto Connect fires while they are still on the page. The voice agent offers to talk. The outbound agent is cleared to dial. Not tomorrow. Now.
Your phone buzzes, not your dashboard.
A real time alert, ranked by who is most likely to book. You do not go hunting for the moment. The moment comes to you.
Agents working this stage
"Sarah opened the pricing email 4 times this morning, spent 7 minutes on the demo page, and she is on your site right now."
This is the moment to callBooked, or handed straight to you. And when a deal gets complex, a real human walks in with the whole file already open in front of them.
One brain behind every agent.
One file per person, across the site, the phone, the inbox and WhatsApp. Every agent reads it before it acts. Nobody ever starts from scratch.
Your funnel, explained at 5am.
Who came in, who warmed up, who dropped off and why, and the three people worth calling today. In plain English, not a dashboard you have to dig through.
Agents working this stage
"Peter booked after 14 days. 9 days cold, 4 intermediate, 1 warm. The trigger was his third visit. He left on the pricing page twice before he converted."
Full journey is on his fileGoHighLevel is where you nurture a lead. Knock Knock is the sales layer that finds them, knows them, and closes them.
Eight agents working together today, and more joining the team every month. Better together, always was.
The fix
One agent. Every channel. All connected.
Replace the stack with a single AI that handles the full sales cycle - from first hello to booked meeting.
Nox does the work your team never has time to do.
- Sees every visitor in real time
- Chats, calls, and video-calls - one widget
- Books meetings without a human
- Answers inbound calls in seconds
- Dials outbound lists automatically
- Pushes every interaction to your CRM
- Sends daily AI briefings to your team
Nox follows up so you don't have to.
From visitor to booked meeting
Four steps. Zero of you.
Every visitor on your site goes through the same loop. Knock Knock runs it 24/7. You step in only when you want to.
Not a chatbot. Not a form. A sales agent.
Every visit. Every page, scroll, return. Identifies who they are in 0.4 seconds.
Pulls their CRM file. Past calls, emails, funnel stage. Scores intent live.
Chats. Calls. Books. Handles objections. No rep needed.
Morning brief. Plain English. In your inbox at 5am.
How it fits
Plug it in once. Run it forever.
Knock Knock sits between your website and your CRM. Drop in the snippet, connect your CRM, point Nox at your offer. Done.
Built different. On purpose.
Most AI tools handle one channel. Knock Knock is the only one that sees your visitors, talks to them, books them, and lets you jump in - all from a single agent.
Knock Knock
Full-stack AI sales agent for your website
Identifies every visitor
Names, companies, intent - without forms
Live navigation tracking
See exactly what they’re looking at - in real time
Live video calls with visitors
Right inside the website widget · one click
Voice on web + phone
Same agent, every channel, full context
One-click human takeover
Chat, voice, or video - in any conversation
Knox AI analyst
Daily morning brief in your inbox · ask anything
Predictable pricing
All-in-one. No per-minute, no per-message extras
CloseBot
Chat AI for agencies
Assistable
Voice + chat AI
Thinkrr
Voice AI
Vapi
Voice API for devs
No visitor identification
No visitor identification
No visitor identification
DIY (build it)
No live tracking
No live tracking
No live tracking
No live tracking
Chat only
Voice + chat only
Voice only
Voice only
Pair with voice tool
Phone calling only
Web on higher tiers
Code & APIs required
Manual handoff
Voice transfer only
Voice transfer only
DIY (build it)
No AI analyst
No AI analyst
No AI analyst
No AI analyst
+ per-message fees
Usage tiers
+ per-minute fees
+ STT/LLM/TTS fees
Identifies every visitor
Knock Knock
Names, companies, intent - without forms
CloseBot
Not availableAssistable
Not availableThinkrr
Not availableVapi
DIY (build it)Live navigation tracking
Knock Knock
See exactly what they’re looking at - in real time
CloseBot
Not availableAssistable
Not availableThinkrr
Not availableVapi
Not availableLive video calls with visitors
Knock Knock
Right inside the website widget · one click
CloseBot
Chat onlyAssistable
Voice + chat onlyThinkrr
Voice onlyVapi
Voice onlyVoice on web + phone
Knock Knock
Same agent, every channel, full context
CloseBot
Pair with voice toolAssistable
Phone calling onlyThinkrr
Web on higher tiersVapi
Code & APIs requiredOne-click human takeover
Knock Knock
Chat, voice, or video - in any conversation
CloseBot
Manual handoffAssistable
Voice transfer onlyThinkrr
Voice transfer onlyVapi
DIY (build it)Knox AI analyst
Knock Knock
Daily morning brief · ask anything
CloseBot
No AI analystAssistable
No AI analystThinkrr
No AI analystVapi
No AI analystPredictable pricing
Knock Knock
All-in-one. No per-minute, no per-message
CloseBot
+ per-message feesAssistable
Usage tiersThinkrr
+ per-minute feesVapi
+ STT/LLM/TTS feesComparison based on publicly available product information at time of publishing.
Hear it from the agencies closing more with Knock Knock.
"I've reviewed 500+ AI tools. I haven't found anything better for conversion."
"When we demo Knock Knock, you can see the sparkle in their eye. They go — wow, that's cool."
"Watching visitors navigate your site in real time is like watching someone walk into a store. You see exactly what they want."
"One super-intelligent platform for all your clients — white-label it and resell it."
FAQ
Everything you need to know
Which channels should I start with?+
Depends on where your buyers come from. If most of your inbound is website traffic, start with chat. If most is phone calls, start with inbound voice. If you're prospecting cold, start with outbound. Most customers add the others within 60 days once they trust the first one. You can switch any channel on or off any time — no contract.
What does Nox actually do, in plain English?+
Nox is the brain that runs Knock Knock. It reads the visitor data your script captures, decides if and when to engage based on your rules, picks the right channel, has the conversation, books the meeting, and emails you a morning brief about everything that happened. You don't open a dashboard. You read the brief.
Does it work with my CRM?+
Yes. Native integrations with GoHighLevel, HubSpot, and a few others. Anything else via Zapier or webhooks. Every conversation Nox has gets logged to the right contact record automatically — including transcripts, intent score, and follow-up notes.
Do I have to do video calls with strangers?+
No. Video is off by default. Turn it on if you sell high-ticket products where face-time closes deals — real estate, premium consultancies, B2B above $5K ACV. Most customers leave it off forever. Nox handles every conversation through chat, voice, or phone — you'll never need to be available.
What's actually included in each plan?+
Three plans: Starter ($47/mo), Pro ($149/mo), and Business ($349/mo). All include the visitor intelligence script, Nox, AI chat + voice agents, and integrations. What changes by tier is how many AI Credits and Visitor ID Resolutions you get, which channels are unlocked (inbound phone starts at Pro, unlimited outbound at Business), and how many websites and team members. Hit a cap mid-month? Top up 1,000 extra credits for $40 from inside the dashboard — no plan upgrade needed. See the full pricing page →
What are AI Credits and Visitor ID Resolutions?+
The two things we meter so you only pay for what you actually use.
AI Credits power AI activity — chat responses, voice agent minutes, outbound dials. Most customers use 5–20 credits per qualified conversation.
Visitor ID Resolutions are how Nox turns an anonymous visitor into a known person — name, company, contact info — without forms. Each successful resolution counts as one.
Both reset monthly. Run out? Top up from your dashboard in two clicks. No surprise bills.
Can I white-label it?+
Yes. Three ways:
Add the white-label add-on ($50/mo) to any plan to remove “Powered by Knock Knock” branding.
Subscribe to Business ($349/mo), which includes white-labeling.
Or, if you're an agency reselling to clients, our agency partnerships are fully white-labeled by default — your brand, your domain, your client portal. Learn about partnering →
How do I get help when I need it?+
Daily office hours on Zoom — included in every plan, even Starter. Drop in, ask anything, watch other customers' questions. Business customers also get 1-on-1 onboarding and a dedicated account manager.
How do I get started?+
Sign up. The trial is 7 days, no credit card. You'll be live with at least one channel within 30 minutes.
Turn your website so intelligent
that visitors say wow.
So wow they convert.
Whitelabel · Resell · Grow.