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Two-Sided PlatformsLiquidity SeedingTrust & Safety

Your Marketplace Idea Won't Survive First Contact With Real Users

If you're a founder building a two-sided marketplace, you already know the truth: supply without demand is a graveyard, demand without supply is a refund.

We build marketplace MVPs with real liquidity strategies, integrated payments, KYC, and trust & safety -- shipped on Next.js and Supabase.

12–18
Weeks to Launch
Discovery through go-live
£38K
Starting Price
Fixed-fee, transparent
95+
Lighthouse Score
Performance target
0
Hidden Fees
Scope-locked pricing
What A Marketplace MVP Actually Needs To Survive First Contact

Your marketplace goes live with one side empty and the other never arrives. A two-sided platform connects supply -- sellers, hosts, providers -- with demand -- buyers, renters, bookers -- but only if both sides believe the other exists. Your MVP isn't feature-complete. It's transaction-ready. Real payments moving between parties. Identity verification stopping fraud before your first seller onboards. Enough liquidity seeded that early users see activity, not an empty homepage. You're not proving every feature works. You're proving your matching logic, trust rails, and commission structure can sustain repeat transactions before you burn runway scaling a platform nobody trusts.

What is holding your current website back?

Common gaps we find in nearly every audit.

The chicken-and-egg problem kills most marketplaces before they ever launch
Risk: No seeding strategy means neither side shows up, and you burn runway proving absolutely nothing.
Payment integration is way more complex than it looks for multi-party transactions
Risk: Split payouts, platform fees, seller onboarding, tax compliance -- these create months of hidden work if you don't architect for them on day one.
KYC gets bolted on as an afterthought, and that's when things go sideways
Risk: One fraudulent actor erodes trust fast. One bad experience and your early adopters are gone -- permanently.
No-code marketplace builders hit a wall the moment you need to differentiate
Risk: You'll ship quickly, sure, but your matching logic, fee structure, and UX will look identical to every other Sharetribe clone out there.
Most agencies scope marketplace builds like standard web apps
Risk: They miss liquidity mechanics, trust systems, supply-side tooling -- the exact things that determine whether your marketplace survives past month six.
Founders consistently underestimate content moderation
Risk: One viral incident with unmoderated content can torch brand trust and invite regulatory attention before you've even hit traction.

How We Build This Right

Every safeguard, built in from Day 1.

Stripe Connect & Adyen Integration

Multi-party payment flows with split payouts, platform fees, and support for 135+ currencies. We handle seller onboarding, delayed captures, and refund routing so money moves correctly from day one -- no surprises.

KYC via Onfido & Persona

AI-driven identity verification with sub-60-second checks and 99% accuracy. Biometric liveness detection and document orchestration keep bad actors off your platform without making life difficult for legitimate users.

Hive Moderation for Trust & Safety

Automated content and image scanning at 95%+ precision, built to scale to millions of items per day. We pair that with human-in-the-loop escalation for the edge cases AI genuinely can't resolve on its own.

Real-Time Matching Algorithms

Custom liquidity algorithms built on Supabase Edge Functions and real-time subscriptions. Geo-matching, relevance scoring, dynamic feed ranking -- all tuned to your marketplace's specific supply-demand dynamics, not a generic template's.

Supply-Side & Demand-Side Seeding

Structured onboarding protocols for your first 20–50 adopters on each side. We build out invite flows, referral incentives, and soft-launch gating that creates real liquidity before you go public -- not after.

Transparent Scope-Locked Pricing

Every engagement starts with a fixed-fee discovery phase. You see the full cost breakdown before we write a single line of code. No change orders, no hourly surprises, no ambiguity about scope.

What We Build

Purpose-built features for your industry.

Build matching logic and transaction flows on Next.js with Supabase Realtime pushing updates the moment a listing, booking, or message arrives

Your platform handles sub-200ms page loads globally with Vercel edge deployment and Postgres-backed auth that scales past your first 10K users

Connect Stripe Connect or Adyen split payouts with escrow, platform fees, and automated 1099 generation so money moves correctly from day one

Your payment rail splits fees, holds escrow, and generates tax documents automatically so you're not debugging Stripe webhooks at 2am when GMV spikes

Verify seller identity with Onfido or Persona document checks and liveness detection before their first transaction clears your platform

Your seller onboarding blocks fraudulent accounts with biometric checks and risk scoring before a single transaction damages buyer trust

Scan every listing, profile image, and message with Hive Moderation API to catch prohibited content before a bad actor torches your brand

Your content moderation catches prohibited imagery and text in real-time with human escalation queues for edge cases your AI can't classify

Seed supply with invite-gating, geo-fenced launches, and incentive dashboards built into your admin panel -- not bolted on later

Your supply-side toolkit gives you manual control over early cohorts so you're seeding the right inventory in the right markets before opening the floodgates

Deploy real-time notification feeds so buyers see fresh inventory and sellers see incoming demand without refreshing a page

Your notification system keeps both sides engaged with instant updates on bookings, messages, and new listings -- reducing the time between signup and first transaction

Built on a Modern, Secure Stack

Next.jsSupabaseVercelStripe ConnectAdyen for PlatformsOnfidoPersonaHive ModerationTypeScriptPostgres

Our Development Process

From discovery to launch. Quality at every step.

01

Discovery & Liquidity Strategy

Weeks 1–2

We map your marketplace dynamics: who supplies, who demands, what triggers that first transaction. We define your seeding plan, payment architecture, and trust requirements. You get a fixed-fee scope document with no loose ends.

02

UX Design & Data Modelling

Weeks 3–5

Figma prototypes for both sides of the marketplace, plus admin. While that's happening, we're modelling your Supabase schema, matching logic, and payment flows in parallel. You approve designs before a build sprint begins.

03

Core Platform Build

Weeks 6–13

Next.js frontend, Supabase backend, Stripe Connect or Adyen integration, KYC pipeline, and moderation layer -- built in parallel sprints with weekly demos. Matching algorithms get tuned against synthetic data so they're not flying blind on launch day.

04

QA, Seeding & Soft Launch

Weeks 14–16

End-to-end testing across payment, verification, and moderation flows. We onboard your first 20–50 supply-side participants and gate demand-side access for controlled liquidity validation. You learn before you open the doors.

05

Public Launch & Iteration

Weeks 17–18+

Full deployment with monitoring, error tracking, and analytics. Then 30 days of post-launch support -- bug fixes, performance tuning, and algorithm adjustments based on what real transaction data is actually telling us.

Social Animal

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Marketplace MVPs from £38,000 GBP

Fixed-fee. Scope-locked. 30-day post-launch support included. See all packages →

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Related Resources

Frequently Asked Questions

No-code tools like Sharetribe ship fast but lock you into generic matching, fee structures, and UX you can't escape. A custom Next.js + Supabase build takes 12-18 weeks, but you get unique liquidity algorithms, bespoke payment flows, and a codebase you actually own. That's what separates a viable marketplace from a dressed-up template.
We build seeding infrastructure directly into the platform from the start -- invite-gated launches, geo-fenced rollouts, supply-side onboarding tools, incentive systems. During soft launch, we manually onboard 20-50 supply-side participants so demand-side users find real listings immediately, not an empty platform that makes them leave and never come back.
Stripe Connect is faster to integrate, well-documented, and works well for most early-stage marketplaces. Adyen for Platforms has lower per-transaction fees at high volume and stronger coverage across European and APAC markets. Which one we recommend depends on your geography, volume projections, and what your sellers actually need for payouts.
If your marketplace involves payments between strangers -- yes, you need KYC. Stripe and Adyen both require seller identity verification for compliance. We integrate Onfido or Persona to automate this with AI-driven document checks in under 60 seconds, so onboarding stays frictionless while you're meeting regulatory requirements from launch day.
Scope determines the number. A straightforward product marketplace with Stripe Connect and basic KYC sits at the lower end. Complex service marketplaces with booking systems, Adyen integration, advanced matching algorithms, mobile-responsive admin tooling, and multi-region compliance push toward £90K-£125K. Discovery locks in the exact number before build starts -- that's the whole point of it.
Melody Sellers is our Principal Engineer. She architects the marketplace systems -- liquidity algorithms, real-time matching logic, payment orchestration. She leads technical discovery, defines the Supabase schema and Edge Function architecture, and reviews every deployment personally. She's built two-sided platforms processing millions in GMV. When something's complex, she's the one figuring it out.
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