Marketplace

Launch your AI-built marketplace with confidence

Code review and production services for two-sided marketplaces built with AI tools. Payments, trust, and data integrity.

Marketplaces are among the hardest apps to build well because they serve two distinct user types (buyers and sellers) with different needs, handle money flowing between users, and require trust systems. AI tools can scaffold the UI quickly, but the critical backend logic — escrow, disputes, ratings, and split payments — needs careful implementation.

Marketplace challenges we solve

The most common issues in AI-built marketplace projects.

Payment splitting and payouts

Buyers pay, the platform takes a cut, sellers receive the rest. This requires Stripe Connect or similar — significantly more complex than basic checkout. AI tools rarely implement this correctly, leaving you with manual payout processes.

Two-sided authorization

Sellers can manage their listings but not other sellers'. Buyers can view listings but only manage their own orders. Admins can moderate everything. Three distinct permission levels, all enforced server-side.

Trust and safety

Reviews, ratings, dispute resolution, content moderation, and fraud detection. These are complex systems that AI tools don't generate but that make or break a marketplace.

Search and discovery

Users need to find what they're looking for. Basic database queries won't cut it at scale — you need full-text search, filters, sorting, and potentially geolocation. This requires proper indexing or a dedicated search service.

Real-time communication

Buyers and sellers need to communicate. In-app messaging, notifications, and order status updates require real-time capabilities that AI tools often implement superficially.

Data integrity

Inventory counts, order statuses, payment states, and user balances must be consistent. Race conditions (two buyers purchasing the last item simultaneously) require careful database design.

What we review

Our marketplace audit covers these critical areas.

Payment flow — Stripe Connect setup, split payments, seller payouts

Authorization — buyer vs seller vs admin permissions enforced server-side

Data integrity — race conditions, inventory management, order state machines

Search performance — indexing, query optimization, full-text search

Real-time features — messaging, notifications, live updates

Content moderation — reported content handling, admin tools

Security — data isolation between sellers, payment security

Mobile responsiveness — marketplace browsing experience on mobile

We work with marketplace apps built with

Common marketplace tech stacks

Start with a self-serve audit

Get a professional review of your marketplace at a fixed price.

Security Scan

Black-box review of your public-facing app. No code access needed.

$19
  • OWASP Top 10 checks
  • SSL/TLS analysis
  • Security headers
  • Expert review within 24h
Get Started

Code Audit

In-depth review of your source code for security, quality, and best practices.

$19
  • Security vulnerabilities
  • Code quality review
  • Dependency audit
  • AI pattern analysis
Get Started
Best Value

Complete Bundle

Both scans in one package with cross-referenced findings.

$29$38
  • Everything in both products
  • Cross-referenced findings
  • Unified action plan
Get Started

100% credited toward any paid service. Start with an audit, then let us fix what we find.

How it works

1

Tell us about your app

Share your project details and what you need help with.

2

Get a clear plan

We respond in 24 hours with scope, timeline, and cost.

3

Launch with confidence

We fix what needs fixing and stick around to help.

Frequently asked questions

Can AI tools build a marketplace?

AI tools can build the UI and basic CRUD operations. The marketplace-specific features (payment splitting, escrow, trust systems, search) typically need professional implementation. Use AI for the scaffold, then get help with the complex backend logic.

What payment provider should I use?

Stripe Connect is the standard for marketplaces. It handles split payments, seller onboarding, compliance, and payouts. Setting it up properly requires careful implementation — especially the seller verification flow and webhook handling.

Building a marketplace?

Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.

Tell Us About Your App