Why marketplaces are one of the hardest products to build
Marketplaces are one of the most rewarding business models. Airbnb, Etsy, Fiverr, Uber — they all started as simple platforms connecting two sides. The model works because once you solve the chicken-and-egg problem, every new user makes the platform more valuable for everyone else.
But building a marketplace from scratch is significantly harder than building a standard app. You need to handle both sides of the equation at once:
- Separate experiences for buyers and sellers (different dashboards, different flows)
- Listing creation with images, descriptions, categories, and search filters
- Payment processing so buyers can pay and sellers can receive money
- User accounts with profiles, ratings, and trust-building features
- Notifications for orders, messages, status updates, and new listings
- An admin panel for you to manage the platform, moderate content, and track activity
- A responsive design that works on both desktop and mobile
Hiring a development team to build a marketplace MVP costs €20,000 to €50,000 or more. Off-the-shelf marketplace builders (like Sharetribe) charge monthly fees and limit your customization options. Most founders give up before launching, overwhelmed by the technical complexity.
How RunMyStartup builds your marketplace
Describe your marketplace idea in plain words: what is being exchanged, who the buyers are, who the sellers are, and what makes your platform different. Your AI team of 8 specialized agents handles the build:
- Your CEO agent turns your marketplace concept into a structured product plan with priorities and milestones
- Your Developer agent creates the buyer interface, seller dashboard, listing system, and search functionality with Next.js and TypeScript
- Your Accountant agent configures Stripe so buyers can pay and you can process transactions from day one
- Your DevOps agent deploys the entire platform on a real server with your own domain and SSL certificate
- Your Emailing agent sets up order confirmations, welcome emails, and notification campaigns for both buyers and sellers
- Your Growth agent audits your pages and optimizes them for search engines so your marketplace gets found on Google
- Your Marketing agent creates social media content to attract your first users on both sides of the platform
You approve every step. Nothing goes live without your validation. You see what each agent is working on and decide what gets published.
What is included from day one
Everything you need to run a marketplace is set up automatically:
- A live marketplace deployed and accessible worldwide with a subdomain
- Buyer and seller interfaces built specifically for your use case
- Listing creation, search, and filtering for your product or service category
- Stripe payment processing configured and ready to accept transactions
- User accounts with sign-up, authentication, and profiles
- Email notifications for key events (new orders, confirmations, status changes)
- Built-in analytics dashboard to track visitors, listings, and platform activity
- A dedicated PostgreSQL database for all your marketplace data
- Your own domain name (from the Founder plan at €39/month)
- Full source code access via GitHub (from the Studio plan at €99/month)
From idea to live marketplace in 3 steps
Step 1: Describe your marketplace. What is being exchanged? Who are the two sides? How does a transaction work? What makes your platform unique? Use your own words.
Step 2: Your AI team builds the platform. You review the buyer experience, the seller dashboard, the listing flow, and the payment setup. You request changes and approve each milestone.
Step 3: Your marketplace goes live. Sellers can create listings, buyers can browse and purchase, and you start building your community. Your Growth and Marketing agents help you attract your first users.
No marketplace template. No cookie-cutter solution. A real product built around your specific idea and your specific market.
Why RunMyStartup instead of a marketplace builder
Marketplace builders like Sharetribe or Arcadier offer pre-built templates. They are fast to set up, but you are limited to their design, their features, and their pricing model. You pay monthly fees on top of transaction commissions, and your platform looks like every other marketplace on the same tool.
With RunMyStartup, your marketplace is built from scratch for your specific use case. The interface, the flows, the features — everything is tailored to your idea. On the Studio plan, you own the source code and can hire developers to extend it. You are not locked into anyone's template.
Marketplace ideas that work
- Service marketplaces: connect freelancers with clients (design, writing, development, consulting)
- Rental platforms: equipment, spaces, vehicles, tools, photo gear
- Local marketplaces: food producers, artisans, specialists in a specific city or region
- B2B marketplaces: suppliers, wholesale, industry-specific parts and materials
- Digital goods: online courses, templates, design assets, music, photography
- Experience marketplaces: guided tours, workshops, cooking classes, outdoor activities
Pricing
Start for free with the Discovery plan (1 project, 4 AI agents, 15 credits). Upgrade to Founder at €39/month for 3 projects, Stripe payments, and a custom domain. Studio at €99/month adds full source code access and the complete AI team of 8 agents.
RunMyStartup takes a 3% commission on revenue generated through your marketplace's payments. You keep 97%. No per-listing fees, no per-transaction fees beyond Stripe's standard processing rate.