--- chain: ["27 lines", "34 outputs", "216 screens", "$27.86 per subscriber", "44 Nouns · 190 Verbs"] --- # Define Nouns and Verbs. The rest is generated. Nouns are what your SaaS keeps; Verbs, what people and agents do. Leaseclock, below, is 27 lines, and nobody wrote anything else. Your first product is free; each after it is $49 a month. You keep your files, your records and your Stripe account. [Export in one call](/docs/interfaces#export) leaseclock.com · 4 files · 27 lines. ```mdx title="leaseclock.com/Startup/leaseclock.com.mdx" --- $type: Startup $id: leaseclock.com name: Leaseclock description: Tracks lease renewals for small property managers. pitch: No renewal slips past its date. icp: small property managers brand: Leaseclock --- ``` ```mdx title="leaseclock.com/Noun/Unit.mdx" --- $type: Noun $id: leaseclock.com/nouns/Unit name: Unit fields: label: { type: text, required: true } building: { type: text } --- ``` ```mdx title="leaseclock.com/Noun/Lease.mdx" --- $type: Noun $id: leaseclock.com/nouns/Lease name: Lease fields: unit: { type: link, target: Unit, required: true } renter: { type: email, required: true } endsOn: { type: date, required: true, indexed: true } status: { type: choice, options: [{ key: active }, { key: ended }] } verbs: renew: does: Move the end date forward input: { endsOn: { says: the new end date, type: date, required: true } } from: [active] fn: { kind: code, body: replace } end: { does: End the lease, from: [active], to: ended } --- ``` ```mdx title="leaseclock.com/Offer/pro.mdx" --- $type: Offer $id: leaseclock.com/offers/pro name: Leaseclock Pro price: { amount: 29, currency: USD, unit: month } limits: { Unit: 200 } personas: Property manager, Leasing coordinator status: Live --- ``` Rename Lease or renew. Every address reprints. ```bash curl https://api.sb/leaseclock.com/leases/4b/renew ``` - App · `Leases › 4B › Renew` - API · `POST /leases/4b/renew` - CLI · `do Lease.renew 4b` - MCP · `do Lease.renew` - SDK · `$.Lease.renew('4b', { endsOn })` - Site · `leaseclock.com/pricing` - Docs · `leaseclock.com/docs/lease#renew` - Blog · `leaseclock.com/blog` - Stripe · `Leaseclock Pro · monthly` ## Generated, never scaffolded. Your agent could write all 34 into your repo for you to maintain. Here nothing is copied; each improvement reaches you on the next request. - **App** (4): A 9-screen Admin for your team · A button for every Verb · SaaS App for your Customers · Customer sign-in - **API** (5): 18 operations on 2 Collections · Your own domain · Customer keys and Limits · One Tenant per Customer · Refusals that name the fix - **CLI** (2): show for every record · do for every Verb - **MCP** (2): search, fetch and do · Tools for your Customers’ agents - **SDK** (3): A typed $ with 14 methods · TypeScript, Zod and JSON Schema · Packages under your name - **Site** (2): Home, pricing and legal pages · /llms.txt, OpenAPI and agents.json - **Docs** (3): A page per Noun and Verb · A Markdown twin of every page · Examples tested on every Interface - **Blog** (2): /blog · A changelog - **Stripe** (5): A Product and Price per Offer · Checkout and signed webhooks · Monthly subscriptions · A billing portal · Payouts to your own account - **Underneath every Noun** (6): Four Access levels · Previews that run nothing · Try mode · Versions and undo · Test and Dev environments · Export in one call 34 outputs. ## Define your first Noun. Step 0 needs no key, and every write has an undo. 0. This URL exists because Startup declares create. ```bash curl https://api.sb/startups/create ``` 1. Sign in once. Two export lines follow. ```bash npx startup-builder login ``` 2. Create your Startup: check it in try, then commit. ```bash curl -X POST https://api.sb/startups/create \ -H "authorization: Bearer $SB_TOKEN" \ -H 'Prefer: mode=try' \ -d '{"domain":""}' ``` 3. Send the files you wrote: try, then commit. ```bash curl -X POST https://api.sb//nouns \ -H "authorization: Bearer $SB_TOKEN" \ -H 'Prefer: mode=try' \ -F file=@Noun/Unit.mdx -F file=@Noun/Lease.mdx ``` 4. Your Site, Docs and llms.txt, on your own domain. ```bash curl https:///llms.txt ``` ## Batteries included. Every output has a default. Override any style or component, and you maintain only what you override. - Theme: you maintain the token values - CSS: you maintain your rules - A field’s input: you maintain that one input - A Noun’s view: you maintain that view’s layout - A page or screen: you maintain that page’s or screen’s layout - A Function body: you maintain what the Verb does 6 overrides. Unit 96 · Lease 120: 216 screens, never drawn. ## Get paid with Stripe. Write the price once. You never create a Stripe Product or Price. - Leaseclock Pro · `amount: 29` - /pricing · up to 200 units - Checkout · signed webhook - Subscription - Billing portal - Your Stripe account: $27.86 per subscriber, after Stripe's standard card rate (2.9% + 30¢) Your Customers pay you $29 a month for Leaseclock Pro, through your own Stripe account. ## The constraints are the feature. Every Noun takes one shape, SaaS.Dev's own included. That is why your agent gets yours right, and you can check all 27 lines yourself. - **Unit**: fields label · building (2); verbs none (0) - **Lease**: fields unit · renter · endsOn · status (4); verbs renew · end (2) - ****: the same three keys. api.sb's own, in the same shape: [44 Nouns · 190 Verbs](/docs/how-it-works#constraints), each with at least 3 Verbs. > Read https://saas.dev/llms.txt. Write the Nouns, Verbs and Offer for in Leaseclock's shape. Check each file with Prefer: mode=try, fix every refusal, and show me the files before you commit.