Build websites and funnels that get you clients, with 
Claude, in 24 hours.
A plug and play Claude skill file that builds your whole client-getting funnel for you.
- Live in 24 hours, not 4 weeks
- Pages and copy written for you
- No code, no page builders
Instant download·30-day guarantee
300+ sales. 5 refunds. 98% satisfaction.
checkout so it is ready to publish.Your client getting funnel live in three steps.
From your offer to a client-ready funnel, without ever touching a page builder.
Tell it your offer
Answer a few questions about your business. Builder OS picks the funnel that fits.
Claude builds it
It writes the pages, the copy and the booking flow, ready to publish.
Go live and win clients
Publish to your platform and turn cold traffic into booked calls and sales.
Websites and funnels that win clients.
The same funnel system behind five years of client results.
Software
E-commerce
Software
Education
Software
Coaching
Education
E-commerce
Law firm
Local business
Recruitment
Hospitality
App
Software
Digital product
Digital product
Consulting
Consulting
E-commerce
Course
Newsletter
Portfolio
E-commerce
Digital product
MembershipYour website is costing you clients.
You're paying for traffic that never turns into calls.
More ad spend. Same few calls.
You pay for every click, but most people leave the page in seconds.
AI gave you words. Not a funnel.
Generic prompts give generic copy. You still have to design it, build it and wire it up.
A developer gave you a quote. Not a launch.
$5,000 and six weeks before you see a single call.
Every week it stays like this, you pay for traffic that never turns into clients.
Meet Builder OS.
A plug-and-play Claude skill file that picks the funnel that fits your offer and builds it end to end. You just publish.
49 files · 9 build phases · one funnel, live today
checkout so it is ready to publish.Works with the platforms you already use.
GoHighLevelGoHighLevelGoHighLevelGoHighLevel
ClickFunnels
Kajabi
Systeme.ioClickFunnelsKajabiSysteme.ioClickFunnelsKajabiSysteme.ioClickFunnelsKajabiSysteme.io
Kartra
LeadpagesKartraLeadpagesKartraLeadpagesKartraLeadpagesWhat's inside.
Not a promise. The real folder you download and drop into Claude.
builder-os/ ├─ START-HERE.md ← open this first ├─ SKILL.md ← the 9-phase build ├─ README.md ├─ LICENSE.md │ ├─ build/ ← 14 skills, 9 phases │ ├─ onboarding/ │ ├─ discovery-synthesis/ │ ├─ copywriting/ │ └─ + 11 more skills │ └─ references/ ← what it builds from ├─ component-library.md ├─ anti-slop-reference.md └─ + 12 more files
- Yours to keep. A folder on your computer, not a login that can disappear.
- Years of client builds, written down so Claude does them the same way every time.
- You never open the files. Drag the folder into Claude and answer questions in plain English. No code.
Don't take our word for it.
Havstock agency clients. Builder OS is the system behind their funnels.
"This sales funnel template is fire! Made it so easy to start booking calls."
"Built my whole low-ticket funnel in a day using Havstock's template. Ads are about to fire up."
"Nathan and the team helped me add $15K in new MRR in one day and $40K in 27 days. If you want real ROI, work with Nathan."
"We were redesigning our B2B homepage and Nathan made it effortless. His CRO expertise saved us weeks. Wish we'd brought him in sooner."
"Nathan and his team completely changed the game for us. We landed our first mega client right after working with them."
"This sales funnel template is fire! Made it so easy to start booking calls."
"Built my whole low-ticket funnel in a day using Havstock's template. Ads are about to fire up."
"Nathan and the team helped me add $15K in new MRR in one day and $40K in 27 days. If you want real ROI, work with Nathan."
"We were redesigning our B2B homepage and Nathan made it effortless. His CRO expertise saved us weeks. Wish we'd brought him in sooner."
"Nathan and his team completely changed the game for us. We landed our first mega client right after working with them."
"This sales funnel template is fire! Made it so easy to start booking calls."
"Built my whole low-ticket funnel in a day using Havstock's template. Ads are about to fire up."
"Nathan and the team helped me add $15K in new MRR in one day and $40K in 27 days. If you want real ROI, work with Nathan."
"We were redesigning our B2B homepage and Nathan made it effortless. His CRO expertise saved us weeks. Wish we'd brought him in sooner."
"Nathan and his team completely changed the game for us. We landed our first mega client right after working with them."
"This sales funnel template is fire! Made it so easy to start booking calls."
"Built my whole low-ticket funnel in a day using Havstock's template. Ads are about to fire up."
"Nathan and the team helped me add $15K in new MRR in one day and $40K in 27 days. If you want real ROI, work with Nathan."
"We were redesigning our B2B homepage and Nathan made it effortless. His CRO expertise saved us weeks. Wish we'd brought him in sooner."
"Nathan and his team completely changed the game for us. We landed our first mega client right after working with them."
"A total game-changer. My course sales had flatlined, but after he rebuilt my funnel, enrolments spiked almost instantly."
"Nathan built me a killer landing page that finally converts and brought in big clients fast. One of my best business decisions."
"Big shoutout to Nathan and his team. They helped us launch fast and hit $10K in our first month."
"A total game-changer. My course sales had flatlined, but after he rebuilt my funnel, enrolments spiked almost instantly."
"Nathan built me a killer landing page that finally converts and brought in big clients fast. One of my best business decisions."
"Big shoutout to Nathan and his team. They helped us launch fast and hit $10K in our first month."
"A total game-changer. My course sales had flatlined, but after he rebuilt my funnel, enrolments spiked almost instantly."
"Nathan built me a killer landing page that finally converts and brought in big clients fast. One of my best business decisions."
"Big shoutout to Nathan and his team. They helped us launch fast and hit $10K in our first month."
"A total game-changer. My course sales had flatlined, but after he rebuilt my funnel, enrolments spiked almost instantly."
"Nathan built me a killer landing page that finally converts and brought in big clients fast. One of my best business decisions."
"Big shoutout to Nathan and his team. They helped us launch fast and hit $10K in our first month."
"Nathan audited my funnel and picked up a load of things I'd missed that were clearly costing me leads and conversions."
"Landed my first sale working through the changes Nathan gave me. Make it exist before it's perfect!"
"Nathan recorded me a full video audit of my Skool setup with clear ideas to lift conversions without it feeling salesy."
"He was able to pretty much immediately improve my conversion rate, improve my sales. He's an absolute wizard when it comes to CRO and sales funnels."
"Nathan audited my funnel and picked up a load of things I'd missed that were clearly costing me leads and conversions."
"Landed my first sale working through the changes Nathan gave me. Make it exist before it's perfect!"
"Nathan recorded me a full video audit of my Skool setup with clear ideas to lift conversions without it feeling salesy."
"He was able to pretty much immediately improve my conversion rate, improve my sales. He's an absolute wizard when it comes to CRO and sales funnels."
"Nathan audited my funnel and picked up a load of things I'd missed that were clearly costing me leads and conversions."
"Landed my first sale working through the changes Nathan gave me. Make it exist before it's perfect!"
"Nathan recorded me a full video audit of my Skool setup with clear ideas to lift conversions without it feeling salesy."
"He was able to pretty much immediately improve my conversion rate, improve my sales. He's an absolute wizard when it comes to CRO and sales funnels."
"Nathan audited my funnel and picked up a load of things I'd missed that were clearly costing me leads and conversions."
"Landed my first sale working through the changes Nathan gave me. Make it exist before it's perfect!"
"Nathan recorded me a full video audit of my Skool setup with clear ideas to lift conversions without it feeling salesy."
"He was able to pretty much immediately improve my conversion rate, improve my sales. He's an absolute wizard when it comes to CRO and sales funnels."
Builder OS vs the other ways.
Everything you need to launch, for $27.
What you get
- The Builder OS skill fileBuilds your pages, copy and booking flow.$497 value
- The full video walkthroughSo you never get stuck.
$97Free - Funnel archetype libraryPicks the right funnel for your offer.
$197Free - The automation blueprintThe backend that runs after opt-in.
$147Free - 7-day community trialAsk questions while you build.
$99Free - Unlimited projectsSingle user license.Included
Total value $1,037Yours today for $27
Yours to keep forever. No subscription.
Get instant access now - $27Instant download · 30-day guarantee
300+ sales. 98% satisfaction.
Book a client call in 30 days, or your money back.
No call booked in 30 days? We'll help you get one, or refund you in full.
98% satisfaction. Only 5 refunds in 300+ sales.
The founder behind Builder OS.
For five years I've built the funnels behind other people's growth. Coaches, consultants, agencies and online brands.
Builder OS is that same system, put in your hands. The steps I follow on every client build, written down so Claude follows them for you.
I built Builder OS so you get the funnel I'd build for a client, without the $5,000 price tag.
Nathan Field, founder
Questions, answered.
Still on the fence? These are the questions we hear most.
Do I need my own Claude account?
Do I need to be technical?
Why is it only $27?
What do I actually get for $27?
How fast can I get a funnel live?
What platforms does it work with?
Can I use it for client work?
What if it is not for me?
$5,000 websites and funnels, built for just $27.
Get Builder OS and every bonus today. No client call booked in 30 days? Full refund, and you keep everything.
Get instant access now - $27Instant download · One payment · Yours to keep