Type
Tune every letter
Font, size, weight, leading and spacing, all by hand.
Build a Usage-Based SaaS with AI
Stripe metered billing + per-user quotas + real-time usage display. Skip the metering-as-a-service tax (Metronome, Orb, Lago all charge per event).
Get started for free, no credit card needed.
0
Events meterable on basic Stripe
0h
Metering + caps + alerts wired
0
Metering-vendor fees
0%
Pricing experiment freedom
01 / What you get
Usage-Based SaaS, generated.
Click Generate from the box above. Real Next.js code, a real database, real integrations, not a sandbox. Each piece below ships in the first prompt.
01
Per-user usage counter, incremented atomically on every billable action
02
Plan caps enforced server-side (free: 1k/mo, pro: 50k/mo, team: 500k/mo)
03
Stripe Metered Subscriptions: usage reported to Stripe nightly, overage billed automatically
04
In-app usage dashboard: today / this period / projected month-end
05
Alerts at 80% / 100% of cap so users upgrade before being cut off
02 / Variants
3 variants you can ship.
01
Per-API-call SaaS
Each request is a billable event. Rate-limit by plan. Standard for dev tools.
02
Per-active-resource
Bill by rows stored, GBs hosted, machines running. Common for infra products.
03
Per-AI-generation
Each model call is metered. Tokens, images, videos. Pricing matches model cost.
Pixel-perfect control
The AI builds it. Then you shape every pixel.
Content
Wire up real data
Collections and CMS that feed your live pages.
Color
Pick any color
Components
Reuse your own blocks
Save any section and drop it in anywhere.
Images
Drop in photos
Pull in free imagery without leaving the canvas.
Pages
Structure your site
03 / Who it's for
For people who hate $99-per-seat tools.
→AI SaaS founders metering tokens or generations
→API-first products charging per call
→Infra products billing per active resource (rows, GBs, runtime)
Integrations
Works with the tools you already use.
Payments, database, AI, email and analytics, wired up the moment you connect.
04 / Why generate it
Why generate it instead of buying it.
Metering SaaS (Stigg, Metronome, Orb) charges per event metered. At 1M events a month that's real money for billing infrastructure you can ship in an afternoon.
Pricing experiments are fast: change a plan limit or rate, ship in a prompt. With a metering vendor, every change goes through their UI and may require sales support.
FAQ
Questions about Usage-Based SaaS.
Everything you need to know before you generate it. Anything else, our team is one email away.
Stripe lets you report usage on a subscription via API. Each night (or in real-time), the metered usage gets sent to Stripe. At the period end, Stripe bills the customer for base + overage. Webtwizz scaffolds the reporter and the webhook handlers.
Server-side enforcement only. Every billable action checks the user's current usage before running. At cap, return 429 with an upgrade prompt. Optional: rate-limit by IP for unauth'd endpoints.
Maintain a counter in your DB updated on every action. The dashboard reads it directly. For high-throughput products, batch increments to Redis and flush to Postgres every minute. Webtwizz scaffolds either pattern.
Run grandfathered plans alongside new ones. Old customers stay on their plan; new signups go to new plans. A "migrate to new pricing" CTA in-app lets willing customers move. Stripe supports plan migration at the next renewal.
Keep building
More saas apps you can ship.
AI SaaS App
AI features + paid tiers + token tracking. The four pieces every AI SaaS needs, generated in a couple hours instead of a couple weeks.
Multi-Tenant SaaS
Workspaces, members, roles, billing per tenant. Skip the Clerk/Auth0 per-MAU tax for the auth layer alone.
Newsletter Platform
Subscriber list + paid tier + sending. Stop renting Substack at 10% revenue cut or Beehiiv at $39/month + per-subscriber.
SaaS with Subscription Billing
Login, Stripe Checkout, plan limits, customer portal, the four pieces every paid SaaS needs, generated and wired up. Skip the boilerplate, ship the actual product.
Start building
Your idea, live in minutes.
Describe what you want. WebTwizz builds the real thing, then you click to change anything. No code needed.
Get started for free, no credit card needed.