Marketplace guide
Build a marketplace with AI
Listings, search, vendor onboarding, Stripe Connect for split payments - the parts of a marketplace that take agencies months - generated and deployable in a weekend.
01 / What you can build
Real projects, not toy examples.
People are shipping these marketplaces on Webtwizz this quarter. Each one is a complete app: real auth, real data, real money flowing through Stripe.
Service marketplaces
Connect freelancers, contractors, or service providers with buyers. Booking + payments + reviews.
Product marketplaces
Multi-vendor stores where sellers list products and buyers check out. Stripe Connect handles payouts.
Rental marketplaces
Airbnb-shape - listings with availability calendars, booking, payment hold, and host payouts.
Niche / vertical marketplaces
Industry-specific marketplaces (vintage gear, freelance code review, custom artwork). Smaller TAM, higher margin.
02 / The build
From a sentence to a deployed app.
5 ordered steps. No config files, no devops, no SQL migrations to write by hand.
STEP 01
Describe your marketplace shape
Tell Webtwizz "A marketplace where dog walkers list their services and dog owners book and pay." Webtwizz scaffolds two flows - provider and buyer - with the right database schema.
STEP 02
Connect Supabase for listings + users
Supabase manages providers, listings, bookings, and reviews. Webtwizz auto-generates the schema with proper foreign keys and row-level security so providers only see their own data.
STEP 03
Connect Stripe Connect for split payments
Stripe Connect lets you take a platform fee and route the rest to providers. Webtwizz wires up onboarding, KYC, and payout flows. The hardest part of any marketplace, generated correctly.
STEP 04
Add search and filters
Use AI to add filters (price, location, rating, category). Or wire up Algolia for serious search if you outgrow basic queries. Webtwizz handles both patterns.
STEP 05
Polish the UX visually
Marketplace UX has a hundred small details - empty states, hover effects, mobile layouts. Click into each element and edit it directly instead of prompting the AI for every tweak.
03 / Why it works
The parts other AI builders skip.
Anyone can scaffold a CRUD app. The reason these projects ship is the integration plumbing other builders leave for you.
Two-sided auth from day one
Different sign-up flows for providers and buyers. Different dashboards. Different permissions. Generated correctly the first time.
Stripe Connect, not just Stripe
Most AI builders ship Stripe checkout. Webtwizz scaffolds Stripe Connect - onboarding, KYC, split payments, payouts - which is the actual hard part of marketplace billing.
Search that scales
Start with Supabase full-text search; graduate to Algolia or Meilisearch when you grow. Both integration patterns supported.
Trust + safety primitives
Reviews, ratings, dispute flagging, and content moderation hooks. Generated as needed when you describe them.
04 / The stack
Wired up. One click each.
Supabase, Stripe, the email layer, the analytics layer. OAuth, env vars, webhooks, scaffolded routes, all generated correctly the first time.
Supabase
Listings, users, bookings, reviews. RLS policies for provider/buyer separation.
Stripe Connect
Provider onboarding, split payments, platform fees, payouts.
Resend
Booking confirmations, payout notifications, dispute alerts.
PostHog
Funnel tracking - visitor → buyer, and provider activation rates.
Intercom
Buyer-provider messaging and platform support.
05 / Questions
The honest answers.
The questions founders actually ask before they commit to a stack.
Can Webtwizz really build a marketplace?
Yes - and the trickiest parts (two-sided auth, Stripe Connect, RLS-secured data, payout flows) are exactly what AI generation is good at when prompted correctly. The result is a real Next.js + Supabase marketplace.
How does Stripe Connect work in a Webtwizz project?
Webtwizz scaffolds the OAuth flow for provider onboarding, the platform-fee logic in checkout, and webhook handling for payouts. You set your platform fee percentage in the dashboard. KYC is handled by Stripe.
Do I need to know how to code?
Not for the basics. The visual editor + AI handle most of what a marketplace needs. For custom marketplace logic (escrow rules, custom fee tiers), Standard+ unlocks the code editor where you can extend the generated logic.
How much does it cost to run a marketplace built with Webtwizz?
Webtwizz Standard ($25/mo) + Supabase Pro ($25/mo) + Stripe (~3% per transaction) is the typical baseline. Stripe Connect adds 0.25%. Total infrastructure runs ~$50/mo regardless of marketplace size, scaling with traffic.
What about disputes and chargebacks?
Webtwizz can scaffold a basic dispute flow (message providers, request platform mediation, refund hooks). For high-stakes marketplaces, plan to add custom dispute logic - generally a week of additional work.
Build it visually. Ship it today.
Webtwizz is the AI app builder that lets you edit AI-generated code visually, and ship full-stack apps with auth, databases, and payments.
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