Start
StartupBuilder builds the whole business around your product, from one sentence to your agent or one command, one task at a time.
StartupBuilder builds a whole business, not an app alone: the product plus its site, domain, payments, sales, support, legal, books and agents. Start from one sentence to your agent, or from one command.
Your first 90 days. Ask for any of these in plain words; each guide shows its calls.
Find out if anyone wants it
- Start a business“Start a business that tracks lease renewals for small property managers, $29 a month”
- Find out if anyone wants this“Validate this idea”
- What are people asking for“What did signups say”
- Which integrations do people want“Should Teams come before Slack”
- Spend $200 to test faster“Run some ads to the listening page”
Put it up
- Buy a domain“Buy leaseline.app”
- Connect my domain“Connect leaseline.com. I bought it somewhere else”
- Get email at my domain“Give me dana@leaseline.app”
- Launch my business“Launch Leaseline”
- Put up a page“Launch a landing page tonight”
- Start a waitlist“Collect emails from people who want in”
- Sell a service“Sell renewal outreach as a service at $199 a month”
- Sell my data“Sell renewal dates by county as data”
- Turn my app into a business“I already built the app. Make it a real business”
Get paid
- Take a payment“Take a $29 payment for setup”
- Charge monthly“Charge $29 a month”
- Handle sales tax“Take care of sales tax”
- Charge per use“Bill by usage”
- Add a yearly plan“Add a yearly plan at $290”
- Lock a feature to a plan“Lock export to Pro”
- Cap usage on a plan“Give Starter 10 exports a day, then ask them to upgrade”
- Give a launch discount“Give the first 100 customers 20% off for three months”
- Give a customer a free trial“Give Riverside Property a 14-day free trial”
- Charge per seat“Charge $15 a month for each person on the team”
- Add a free trial to a plan“Give every new Pro customer 14 days free”
- Ask me before big refunds“Refund up to $250 without asking me”
- Take a deposit“Take a refundable deposit”
Ship
- Ship my changes“Put my edits to the lease fields live”
- Let customers sign in“Let my customers sign in”
- Build my app“Build the app my property managers sign in to”
- Ship an API“Sell renewal dates as an API, a cent per call”
- Store my customers' data“Keep each customer's leases, units and tenants”
- Send email from my domain“Send email from our domain”
See how it's going
Work with your agent
- Approve what agents spend“Ask me before any agent spends more than $500 a month”
- Issue a card with a limit“Give my ads agent a card with a $500 monthly limit”
- Hire an agent for a role“Hire an agent to answer my customers”
- Automate a workflow“When a customer reaches one year with us, email them a thank-you from me and give them a free month”
- Pause every agent that talks to customers“Stop all customer-facing agents now”
- Let the support agent refund up to $50“Let the support agent refund up to $50 without asking”
- Review the support agent“Review the Customer Lead for last week”
- Invite my cofounder as CTO“Add Sam to the Engineering Lead seat”
- Give a teammate access“Give my cofounder access”
- Run sales myself“Let me run sales myself”
- Answer an approval“What is waiting on me”
Launch. Clear the launch checklist.
When it matters. Single sign-on, selling abroad and chargebacks wait for an Event in your own records. Guides lists each beside its trigger.
How it works. Six chapters explain what your agent builds.
For agents. Read llms.txt, asks.json and any page as Markdown, or connect the docs MCP server. Docs for agents explains each.
Guides written here. The calls behind each guide on this tab.
| You say | Guide | Calls | Status |
|---|---|---|---|
Charge per use | Charge per use | Meter.create, Offer.create, Offer.publish | beta |
Find out if anyone wants this | Find out if anyone wants this | Hypothesis.create, Offer.create, Offer.publish, Survey.create, Site.publish | live |
How is it going | How is it going | Dashboard.create, Dashboard.ask, Dashboard.schedule | live |
Put up a page | Put up a page | Domain.claim, Site.publish | live |
Send email from our domain | Send email from my domain | Domain.authenticate | live |
Spend $200 to test faster | Spend $200 to test faster | DemandBudget.create, Hypothesis.create, Experiment.create, Hypothesis.test, Experiment.start | beta |
Start a waitlist | Start a waitlist | Waitlist.create, Waitlist.admit | live |
Take a deposit | Take a deposit | Offer.create, Offer.publish | live |
Turn my app into a business | Turn my app into a business | Startup.import, Startup.build | beta |
What are people asking for | What are people asking for | Problem.rank | live |
Which integrations do people want | Which integrations do people want | Collection.query | beta |
- With your agentConnect your agent, say one sentence, and get a whole business in test, then change it by asking in plain words.
- With codeScaffold a Startup with npm create startups, run it locally, change a price, and call the Verbs your agent calls.
- Where StartupBuilder sitsApp builders make the product, and StartupBuilder makes the business around it, with checkout, books, terms and agents.
- Start from a businessEvery Startup starts from a Startup Template that combines an operating model, Product Templates, and the Motions it sells through.
- GuidesEvery task, titled the way a founder says it, in the order a new Startup meets it, then by the tab that holds what it builds.
- startups.newstartups.new creates a Startup from one sentence and opens it in startups.studio.