ProtoHub

Buy & sell ready-made API prototype templates—no more from-scratch builds.

Score: 7.6/10United Arab EmiratesMedium BuildReady to Spawn
Brand Colors

The Opportunity

Problem

Freelancers building API tools waste weeks creating unpaid prototypes only for clients to ghost them after demos.

Solution

Marketplace for freelancers to sell pre-built, customizable API prototypes as templates. Buyers (clients or devs) purchase and fork instantly, saving weeks. Sellers earn passive income with zero ghosting risk.

Target Audience

Freelance developers building API tools and prototypes

Differentiator

Curated API-specific templates with fork-one-click deployment, unlike generic no-code marketplaces.

Brand Voice

friendly

Features

Template Listing

must-have15h

Freelancers list prototypes as sellable templates with previews.

One-Click Fork

must-have12h

Buyers fork and deploy templates instantly to their env.

Marketplace Search

must-have10h

Filter by API type, tech stack, and popularity.

Revenue Split

must-have8h

Automated 70/30 split payouts to sellers.

Sales Dashboard

must-have12h

Track template sales, earnings, and buyer feedback.

Customization Editor

nice-to-have10h

In-app editor for template tweaks post-purchase.

Affiliate Program

nice-to-have6h

Earn commissions on referrals.

Featured Listings

nice-to-have8h

Pay to boost template visibility.

Total Build Time: 81 hours

Database Schema

users

ColumnTypeNullable
iduuidNo
emailtextNo
is_sellerboolNo
stripe_idtextYes
created_attimestampNo

Relationships:

  • one-to-many with templates

templates

ColumnTypeNullable
iduuidNo
user_iduuidNo
titletextNo
repo_urltextNo
priceintNo
sales_countintNo

Relationships:

  • foreign key to users(id)
  • one-to-many with purchases

purchases

ColumnTypeNullable
iduuidNo
template_iduuidNo
buyer_iduuidNo
fork_urltextYes
purchased_attimestampNo

Relationships:

  • foreign keys to templates(id) and users(id)

API Endpoints

GET
/api/templates

Search and list templates

POST
/api/templates

Create new template listing

🔒 Auth Required
POST
/api/purchases/:template_id

Purchase and fork template

🔒 Auth Required
GET
/api/dashboard/sales

Get seller sales data

🔒 Auth Required

Tech Stack

Frontend
Next.js 14 + Tailwind + shadcn/ui
Backend
Next.js API routes + Supabase Edge Functions
Database
Supabase Postgres
Auth
Supabase Auth
Payments
Stripe
Hosting
Vercel
Additional Tools
Resend (emails)Vercel Git integration

Build Timeline

Week 1: Auth, DB, marketplace UI

40h
  • User roles
  • Template listings page

Week 2: Template upload and search

35h
  • Repo integration
  • Search filters

Week 3: Purchases and forking

40h
  • Stripe buys
  • Fork logic

Week 4: Dashboards and payouts

30h
  • Seller dashboard
  • Payout splits

Week 5: Polish and reviews

25h
  • Feedback system
  • Tests

Week 6: Launch features

20h
  • Landing optimizations
Total Timeline: 6 weeks • 190 hours

Pricing Tiers

Free

$0/mo

No selling

  • Browse/buy templates
  • 1 fork limit

Pro

$35/mo

5 listings

  • Unlimited forks
  • Sell templates (70% rev share)
  • Basic analytics

Enterprise

$99/mo

None

  • Unlimited listings
  • Featured spots
  • Custom support

Revenue Projections

MonthUsersConversionMRRARR
Month 11202%$84$1,008
Month 69004%$1,260$15,120

Unit Economics

$18
CAC
$400
LTV
6%
Churn
85%
Margin
LTV:CAC Ratio: 22.2xExcellent!

Landing Page Copy

API Prototypes, Ready to Fork & Ship

Skip weeks of building—buy proven templates from top freelancers.

Feature Highlights

Instant fork & deploy
Passive income for sellers
API-focused collection
70% revenue share

Social Proof (Placeholders)

"'Sold my first template Day 1!' — Mike, Dev"
"'Perfect for client pitches.' — Client X"

First Three Customers

Seed with 3 freelancers by offering free Pro listings via Upwork Twitter outreach; buy their templates yourself for initial inventory; share in freelance Discords.

Launch Channels

Product Huntr/SaaSUpwork forumsTwitter #indiedev

SEO Keywords

api prototype templatesbuy api prototypessell freelance prototypes

Competitive Analysis

Bubble Templates

bubble.io/templates
Marketplace cuts
Strength

No-code variety

Weakness

Not API/dev-focused

Our Advantage

Code-based API templates with instant forks

🏰 Moat Strategy

Data moat from sales metrics improving template discovery.

⏰ Why Now?

Freelance API boom with tools like Vercel making deployment trivial.

Risks & Mitigation

markethigh severity

Few initial templates

Mitigation

Seed with partners

technicalmedium severity

Forking reliability

Mitigation

GitHub API limits handling

Validation Roadmap

pre-build5 days

Validate template demand via Typeform

Success: 50% interest

mvp10 days

Onboard 5 sellers

Success: 10 templates live

Pivot Options

  • General SaaS template market
  • AI-generated prototypes

Quick Stats

Build Time
190h
Target MRR (6 mo)
$1,400
Market Size
$45.0M
Features
8
Database Tables
3
API Endpoints
4