Pages, checkout, emails and delivery, built on your own accounts and test-driven with test cards before anyone pays. Nothing goes live until you say yes.
Funnel Builder is a skill Claude Code follows to build the funnel for your ebook, template or other digital product: a sign-up page, a sales page with checkout and an order bump, upsell and downsell pages, a thank-you page with downloads, and the emails that go out after someone signs up or buys.
The page is done. Wiring the funnel is what stops you.
Three things people who build with AI keep writing in public comments (shortened):
Illustration
01
“The landing page is ready. Now what?”
AI made the page fast. On its own it is still a static website: no checkout, no emails, no download.
02
“How do I link the buttons to checkout?”
Checkout, file delivery and welcome emails each live in a different tool, with a different tutorial.
03
“100 clicks, zero buys. The error was on my sales page.”
Does the checkout work? Does the upsell charge the right amount? Does the download arrive? Without a test drive, you find out when strangers try.
Watch it work
Before a stranger pays, a browser tries to break the checkout.
A real recording of the test drive on my own funnel, in test mode: it signs up, buys, says yes and no to the offers, uses a card that must fail, and prints its own report.
Real recording AlexC's own funnel · Dodo TEST mode · 19 Oct 2026 · nothing charged
A 45-second edit of a 3 min 44 s run: slow form-filling plays at 3–4× speed, the key moments at normal speed, and the footage is only cropped and scaled, never retouched. Captions are on the video, so it works with the sound off.
Signs up for the free chapter with a test address.
Buys with the add-on ticked on Dodo's TEST checkout with test card 4242.
Says yes to the upsell with the saved test card and its security code, then shows the receipt and downloads.
Uses a card that must fail: declined, nothing charged, and the buyer gets a help page.
Another buyer says no, takes the cheaper offer, and is refunded.
The script's own report: 13 of 13 scenarios PASS, then verify PASSED.
In 30 seconds
What it is: a skill Claude Code follows to build your sales funnel on your own accounts: sign-up page, sales page with checkout, upsells, emails, hosting on your domain.
Why it is different: it test-drives every checkout path with test cards, and nothing publishes, spends or goes live until you say yes.
What it won't do: bring you traffic. Your agent builds the funnel. You find buyers.
$49 once (launch price). Needs Claude Code on a paid Claude plan, Node.js 22+ and your own accounts: see before you buy.
Example — your numbers
What is building a funnel by hand costing you?
Type your own numbers. The ones shown are only an example; we have not timed people building funnels by hand.
Hours per year40
Value of that time$1,200
Funnel Builder, one-time$49
With the skill you still answer the questions and approve every step. What you stop doing is the wiring and the guessing.
You did nothing wrong. A funnel simply has a lot of moving parts, and doing every one of them by hand, alone, is slow.
How it works
You answer questions. Your agent does the building.
Funnel Builder is an Agent Skill: a folder of instructions, scripts and templates that a coding agent such as Claude Code follows on your computer. You talk to the agent in plain words. You never edit code.
Step 1
Tell it what you sell
Open Claude Code and say what you want to sell. The agent asks about your product, price, buyer, free gift and any real limits. You put your account keys into a private file yourself — never into the chat.
Step 2
Review the pages, watch the test drive
The agent writes the pages and checks the wording, then opens a preview on your computer. After you approve, it creates the products and emails in your accounts and runs a browser test drive with test cards.
Step 3
Go live when you say yes
Only on your clear yes does it publish to Cloudflare on your domain, connect the payment notices and run a final check. Then you buy once with your own card and refund it.
What it builds
Six jobs your agent does for you. Each one checked before the next.
These are the real commands your agent runs. You can read every one of them in the download.
Use it when: you are starting a funnel and want the pages written from your answers.
More about this job
A sign-up page with one form, a sales page that tells a story, shows the logic and the cost of waiting, then asks once; upsell, downsell and second-upsell pages; a thank-you page with download buttons; privacy, terms and refund pages.
Use it when: after every change to the pages, before you review them.
More about this job
It fails the build on fake scarcity, income claims, placeholders, a sign-up page over 300 words, or buttons that do not match the checkout. With several products it also checks that no page states a price that differs from your product list.
No fake countdowns
No income promises
Prices match everywhere
Plain-English report
The order box with the bump ticked ($12 + $5 in the demo).
03
Checkout
Checkout with an order bump, upsells and a downsell
Use it when: the pages are approved and you want the products and payments set up in your own account.
More about this job
Stripe, Dodo Payments (a merchant of record that handles sales tax, and works where Stripe does not, such as Vietnam) or Gumroad for a single product. The files you sell are attached to each product, so the buyer gets them right after paying.
Order bump at checkout
Upsell → downsell → second upsell
Files delivered on payment
Safe to run twice
One of the emails it writes (preview before anything is sent).
Use it when: you want the welcome and follow-up emails written and scheduled, not left in a draft.
More about this job
Double opt-in (people confirm with a click), the free gift, a reminder if it was not downloaded, invitations to buy that stop as soon as someone buys, and emails for buyers. Sent through your Resend account at the hour you choose in each subscriber's time zone, with a daily cap.
Double opt-in
Stops when they buy
Their time zone
Daily sending cap
Test drive: an upsell confirmed on Dodo's page with a test card.
05
Test drive
A full test drive with test cards, before real money
Use it when: everything is set up and you want proof that every path works.
More about this job
A real browser signs up, buys with and without the order bump, says yes and no to each upsell, takes the downsell, tries a declined card and replays a refund. Screenshots on a desktop and a phone screen. If something fails, it prints a hint.
Use it when: the test drive passed and you have said yes.
More about this job
Publishes on your Cloudflare account at your domain, registers the payment notices and checks the live site. With more than one product, a shared “hub” keeps one record per customer, so nobody is offered what they already own or gets two welcome series.
Only after your yes
Your own domain
One record per customer
Launch-price counter
Proof
Don't take my word for it. These are measured numbers.
Every number below comes from a test run or a log, with the date. None of them are sales results — there are none to show yet.
Automated tests passing in the download (0.11.7)
487 · 0 failed
Test-drive scenarios passed (Dodo test mode)
13 / 13
Email timing test on real Resend (1 day = 1 minute)
9 / 9 checks
Phone speed score, 19 pages (Lighthouse)
99–100
Accessibility score, 19 pages
100
Prepared answers → pages written, checked and previewed (demo shop)
2 min 10 s
Test drive: 13 checkout scenarios with test cards, scenario time (AlexC's funnel 1)
3 min 21 s
Measured on a Windows 11 laptop (Intel Core i5-13450HX, 32 GB RAM). Demo-shop timing: Oct 18, 2026, version 0.11.0 (the page-building steps are the same in 0.11.6); the agent had read the skill files for about 4 minutes before the clock started, and the answers and approval were written in advance, so your own interview, your review and account approval add time. Tests: the 0.11.7 download, unzipped and installed as a buyer would (488 tests: 487 passed, 0 failed, 1 skipped). Test drives: Oct 17, 2026, both AlexC funnels, and Oct 19, 2026, funnel 1 (the recording above). The 3 min 21 s adds up the 13 scenarios of Oct 17; starting up and the 6 final checks take a little longer. Lighthouse and the email test: Oct 10–11, 2026. A slower computer takes longer.
15 s screen recording of the demo sales page on a phone.
The email preview the skill writes before anything is sent.
Seen enough?
$49 once, with the ebook The No-Hype Funnel included and a 30-day refund. Your Claude plan and third-party fees are separate.
30-day refund · Checkout by Dodo Payments (merchant of record)
Not ready to buy? Read the free chapter first
Chapter 1 of The No-Hype Funnel, the method the skill follows: what one subscriber is worth to you, before you pay for traffic. 27 pages, PDF, free by email.
The funnels that sell my own books were built with this skill.
No customer stories yet, so here is the next best thing: the live funnels, as they are today.
go.iamalexc.com — The No-Hype Funnel.
aff.iamalexc.com — Clicks You Can Afford.
Sales page on a phone (go.).
Sales page on a phone (aff.).
Screenshots taken Oct 18, 2026. No customer stories are shown because there are none yet.
Straight talk
Before you decide, here is what it can't do yet.
What Funnel Builder does
Builds the whole funnel: pages, checkout, upsells, emails, hosting.
Checks its own wording for hype, fake scarcity and price mistakes.
Tests every path with test cards before anything goes live.
Publishes on your own domain on your own Cloudflare account.
Keeps one customer record across several funnels and a store.
What it can't do yet
One-click upsells on Dodo Payments: the buyer confirms each add-on on Dodo's page with their saved card and its security code.
Point to a real customer yet: my two funnels went live on Oct 17, 2026, and nobody has bought through them so far. Every payment path has run with test cards only.
Stripe and Gumroad live: tested in test mode only. My own funnels run on Dodo Payments.
Mac and Linux: expected to work, but only Windows 11 has been tested.
Chat apps and the API: it needs a coding agent that runs commands on your computer, such as Claude Code. It does not work in claude.ai chat.
Ads, cold email, scraping: it does none of these. Emails go only to people who signed up.
Free and paid alternatives · as of 19 Oct 2026
Why pay when free tools exist? Sometimes you shouldn't.
Here is what four other options say about themselves on their own public pages, next to Funnel Builder, as of 19 Oct 2026. I read these pages on that date. I did not install or run the other tools, so this compares what each page says, not how well each one works.
Compare all five, side by side (10 rows, with sources)
Funnel Builder (this page)
Funnel Architect
Autonnel
Systeme.io (free plan)
ClickFunnels
What it is
Agent Skill for Claude Code (zip)
Claude Code plugin: 29 skills, 5 agents, 13 funnel types
Open-source funnel app with an MCP server and SKILL.md files
Hosted funnel, email and course platform
Hosted funnel platform
Price
$49 one-time launch price, then $79; your Claude plan and fees extra
Free (MIT licence)
$0 self-hosted (Apache-2.0); Cloud $29/month, or $23/month billed yearly; 0% of revenue
Systeme.io's free plan and ClickFunnels run in the browser. Funnel Builder needs Claude Code and Node.js 22.
You want to spend $0
Funnel Architect and self-hosted Autonnel are free, and Systeme.io has a free plan. Funnel Builder is $49, plus your Claude plan.
You need a different funnel
Funnel Architect lists 13 funnel types, including webinar and membership. Funnel Builder builds one shape: sign-up, sales page with order bump, upsell and downsell, thank-you.
You want one-click upsells or A/B tests
Autonnel lists both, plus ad conversion postbacks. With Dodo Payments, Funnel Builder's buyers confirm each add-on on Dodo's page.
You sell courses or need a local gateway
Systeme.io includes a course on the free plan and lists Razorpay, Flutterwave, Xendit and MercadoPago.
You're on a Mac or Linux
Funnel Architect's checks are written for bash. Funnel Builder should work there, but it's only tested on Windows 11.
Where Funnel Builder is different
What you pay for
A full test drive before real money: a real browser signs up, buys with and without the bump, says yes and no to each upsell, tries a declined card and replays a refund. Neither free agent tool's README describes this (as of 19 Oct 2026).
Your yes at every risky step: nothing publishes, spends or goes live without it, and a scorer blocks hype and price mismatches before you see the pages.
One price, your accounts: pages on your Cloudflare, emails on your Resend, orders with your payment provider.
The ebook and email help: The No-Hype Funnel, and help by email until December 31, 2026.
What it won't do better
Easier: no. A browser tool is easier if you don't use a terminal.
More gateways: no. Systeme.io and Autonnel list PayPal and others too.
Proof from customers: none yet. Nobody has bought through my funnels so far.
Traffic: none of these tools brings buyers. That part is still on you.
Prices and features as of 19 Oct 2026; they change, so check each page before you decide. Product names are trademarks of their owners. AlexC is not affiliated with any of them, or with Anthropic.
If the test drive and your yes at every step are what you need
Funnel Builder is $49 once (launch price, then $79), with The No-Hype Funnel included and a 30-day refund. If a free tool above fits you better, pick that one.
30-day refund · Checkout by Dodo Payments (merchant of record)
Before you buy
Start these today. Build in one sitting.
Funnel Builder runs on your computer and builds on your own accounts. The accounts are the slow part, so they come first; once they are ready, the building is one sitting with your agent.
Start these today (not included in the price)
Claude Code on a paid Claude plan from Anthropic. It does not work in the claude.ai chat or through the API.
Node.js 22 or newer, and about 1 GB of free disk space for the tools and a test browser. Tested on Windows 11.
A Dodo Payments or Gumroad seller account (or Stripe, where it is available). Gumroad sells one product without upsells.
Resend for email: free up to 100 emails a day. You confirm your domain with a few DNS records.
Cloudflare and a domain: the free tier is enough for most funnels; a domain is about US$10–15 a year.
Your offer: a product, a price and an idea for a free gift.
Fees from payment providers, Resend, your domain registrar and Anthropic are paid by you to them. Funnel Builder is made by AlexC; it is not a product of Anthropic.
How long it really takes
Accounts, starting today: from minutes to a few days. Dodo's check before live payments (24–72 working hours) is usually the slowest part.
Building, in one sitting: once the accounts are ready. In my timed demo, 12 pages were written and checked in 2 min 10 s from prepared answers; your own interview, your review and the test drive add time.
Going live: only after the test drive passes and you say yes.
If you get stuck
Email hello@iamalexc.com with what you see on screen; help by email is included until December 31, 2026. Not useful for you? Ask for a full refund within 30 days: see the refund policy.
What the price covers
Included
Funnel Builder 0.11.7: the skill, scripts, page templates and step-by-step guides (zip download)
The ebook The No-Hype Funnel (PDF + EPUB), the method the skill follows
Free updates until December 31, 2026: bug fixes and any new version released by then, sent to you by email
Email help with installing and using the skill: hello@iamalexc.com
A 30-day refund if it is not useful for you
Not included
Building the funnel for you, or writing your offer
Business, marketing or ads coaching
Fees for Claude, payments, email, hosting or your domain
Legal or tax advice (check the privacy and terms pages it writes)
Single-user licence: you may use it on your own computers for your own business, or to build funnels for your clients as a service. No reselling or sharing the skill itself.
No Claude Code? Use the Funnel Template Pack ($19)
Fill-in templates for every page and email of the same kind of funnel, with a filled example and the funnel maths worksheet. Paste them into any page builder or email tool: no AI agent, no terminal, no coding. It does not build or test anything for you.
30-day refund · Checkout by Dodo Payments (merchant of record)
The part that matters most
Anyone can copy a page. Knowing why it works is harder to copy.
The skill follows a method: work out what a lead is worth, make one offer per page, send emails that stop when people buy, and fix one step at a time. That method is written out in full in The No-Hype Funnel — and it comes with every copy of Funnel Builder.
Easy to copy
A page template
Wording, fonts and colours
A finished funnel
What you learn from the book
How much a lead is worth to you, so you know what you can spend
Which single offer each page should make
How to read your numbers and fix one step at a time
Included: The No-Hype Funnel ($15 on its own)
The full ebook in PDF and EPUB, delivered with the skill on the same download page. 170 pages on building one funnel in order, with worksheets and a 30-day plan.
30-day refund · Checkout by Dodo Payments (merchant of record)
Price path
One launch price, one later price. Both written down from day one.
$49 for the first 50 copies or until Dec 31, 2026, whichever comes first. Sales in the store and in both AlexC funnels count together. After that the price is $79. No countdown timers and no surprise discounts.
30-day refund · Checkout by Dodo Payments (merchant of record)
After the launch: $79. The same product and the same ebook. Starts after copy 50 or after Dec 31, 2026. Announced here, never as a surprise. An order you have already placed always keeps its price.
Builder Kit · until 2 Nov 2026
Both tools + both ebooks
$69 save $19 (22%)
One-time payment in US dollars, tax included. $88 when Funnel Builder ($49) and Affiliate Autopilot ($39) are bought separately today.
Funnel Builder 0.11.7 (Agent Skill for Claude Code)
Affiliate Autopilot (local app + Agent Skill)
The No-Hype Funnel (PDF + EPUB) and Clicks You Can Afford (PDF)
Free updates and email help until December 31, 2026 · 30-day refund
Ends 2 November 2026, 23:59 Vietnam time (UTC+7).
That is 11:59 am in New York, 8:59 am in Los Angeles and 4:59 pm in London on 2 November. A date, not a timer; then it leaves the store.
Only need Funnel Builder? The $49 copy is the better buy.
30-day refund · Checkout by Dodo Payments (merchant of record)
Affiliate Autopilot needs Docker Desktop and your own Claude API key; ad spend is yours. Every publish, spend or go-live step waits for your approval. No income promises. Single-user licence for each tool.
Questions
Things you may want to ask. Honest answers.
Do I need to know how to code?
No. You do need to be comfortable installing Node.js, running two install commands, and pasting your account keys into a private file. The agent runs every other command and tells you what it is doing.
Which AI agent does it work with?
It is tested with Claude Code, which needs a paid Claude plan from Anthropic. It needs an agent that can run commands on your computer, so it does not work in the claude.ai chat or through the API.
What does a funnel cost to run?
Cloudflare's free tier is enough for most funnels. Resend is free up to 100 emails a day. Payment fees: Stripe charges per transaction, Dodo Payments 4% + 40¢ per charge (+1.5% for international cards; each upsell is its own charge; $1 per refund), Gumroad 10% + 50¢ per sale. A domain is about US$10–15 a year.
I live outside the US and Stripe is not available. Will it work?
Use Dodo Payments. It is a merchant of record: it sells to your buyers, handles sales tax and VAT, and pays you out. My own funnels run on it, from Vietnam. Dodo only accepts sellers whose ID documents come from a country on its list of eligible countries, so check that list before you buy. If it does not work out for you, the 30-day refund applies.
Can I sell physical products?
With Stripe, yes. Dodo Payments is for digital products only, and Gumroad sells one main product without upsells.
What happens if something breaks?
The test drive prints a hint for every failed step, and the guides cover the common problems. If the skill itself has a bug, email hello@iamalexc.com.
Is there a free tool that does this?
Yes, several, and for some people a free one is the better pick. See the comparison.
Where does my funnel's data live?
On your own accounts: the pages and the sign-up list in your Cloudflare account, the emails in your Resend account and the orders with your payment provider. Nothing passes through AlexC.
Can I get an invoice or receipt?
Yes. The receipt comes by email from Dodo Payments, which sells on my behalf as the merchant of record and handles the sales tax or VAT on the order.
Do I get updates?
Yes, free until December 31, 2026: bug fixes and any new version of Funnel Builder released by then. I email every buyer a download link when a new version is out; the version you bought stays in your customer portal. After that date, nothing you have stops working.
Can I get a refund?
Yes. If it is not useful for you, ask within 30 days of buying for a full refund. See the refund policy.
Why will the price go up? Is that a sales trick?
The rule has been public since launch: $49 for the first 50 copies or until Dec 31, 2026, then $79. Once the first copy has sold, the price box shows how many launch-price copies are left, read from our real order records. There is no countdown timer.
Whether you buy it or not, thank you for reading this far.
If Funnel Builder saves you the wiring, I'll be glad to have helped. $49 once, with The No-Hype Funnel included — no subscription for the skill (your Claude plan and third-party fees are separate). The price becomes $79 after the first 50 copies or Dec 31, 2026.
30-day refund · Checkout by Dodo Payments (merchant of record)
Funnel Builder is an Agent Skill made by AlexC for use with Claude Code. It is not made by, endorsed by or affiliated with Anthropic. No income promises: results depend on your offer, your audience and your work.
