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SaaS MVPsMicro Business#064

Subscription SaaS MVP

A production-ready SaaS starter — authentication, Stripe subscription billing, plans with usage limits, and a user dashboard — so you launch on real infrastructure, not scaffolding.

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Project snapshot

Starting at
₹1,00,000$1,400
Delivery
35 days
Status
Live
Tech stack
Next.js + Supabase + Stripe

Stripe

Billing

Usage limits

Plans

Auth + portal

Includes

35 days

Delivery

Overview

Subscription SaaS MVP is the foundation every subscription product needs: sign-up and login, Stripe-powered plans and billing, per-plan usage limits, a customer billing portal, and an onboarding flow — all wired together and deployed.

It is built for founders who want to validate a paid product fast without spending weeks rebuilding auth and billing plumbing. You bring the core feature; this provides everything around it.

The problem

Most of the effort in a new SaaS goes into the same undifferentiated plumbing — auth, billing, plan limits, dashboards. Rebuilding that for every idea wastes weeks. This starter ships it correctly so you can focus on the feature that makes your product unique.

Who it's for

  • Founders launching a subscription (recurring-revenue) product.
  • Indie hackers who want auth and billing done right from day one.
  • Teams validating a paid MVP before investing in a full build.

Features

Authentication

Secure sign-up, login, and session handling with password and social options.

Stripe subscription billing

Plans, checkout, upgrades, downgrades, and cancellations handled through Stripe with webhooks kept in sync.

Usage limits per plan

Each plan enforces its own limits, so free and paid tiers behave differently and upgrades unlock more.

Billing portal

Customers manage their subscription, payment method, and invoices through Stripe's portal.

User dashboard & onboarding

A logged-in dashboard and a guided first-run onboarding get users to value quickly.

User stories

  • As a founder, I want auth and billing ready so that I can focus on my core feature.
  • As a user, I want to subscribe and manage my plan so that I control my billing.
  • As a business, I want plan usage limits so that free and paid tiers differ meaningfully.
  • As a new user, I want onboarding so that I understand the product quickly.

User flow

  1. 1

    Sign up

    The user creates an account and lands on a guided onboarding.

  2. 2

    Choose a plan

    The user selects a plan and subscribes through Stripe checkout.

  3. 3

    Use within limits

    The dashboard enforces the plan's usage limits and prompts upgrades when needed.

  4. 4

    Manage billing

    The user updates their plan or payment method through the billing portal.

Architecture

A Next.js application with Supabase for auth and data and Stripe for subscriptions. Stripe webhooks keep subscription state in the database, so plan and usage checks are always based on the source of truth.

Usage limits are enforced server-side per plan, so tier differences and upgrade gates cannot be bypassed from the client.

The codebase is structured so your unique feature slots into an already-working shell of auth, billing, and dashboard.

Tech stack

FrameworkNext.js
BackendSupabase (Postgres, auth)
PaymentsStripe subscriptions + webhooks
StylingTailwind CSS
HostingVercel / cloud hosting

Data model

EntityFields
Userid, email, createdAt
Subscriptionid, userId, plan, status, stripeId, currentPeriodEnd
Planid, name, price, limits
UsageRecordid, userId, metric, count, period

Build plan

  1. Week 1 — Auth & dashboard

    ~7 days

    Authentication, user dashboard shell, and onboarding.

  2. Weeks 2–3 — Billing & plans

    ~14 days

    Stripe plans, checkout, billing portal, and webhook sync.

  3. Weeks 4–5 — Limits & launch

    ~14 days

    Per-plan usage limits, upgrade gates, QA, and deployment.

Deliverables

  • Deployed SaaS starter with auth and billing.
  • Stripe subscription flow with billing portal.
  • Per-plan usage limits and user dashboard.
  • Full source code and setup documentation.

Integrations

  • Stripe for subscription billing.
  • Supabase for auth and data.
  • Email for transactional messages.
  • Optional: analytics and error monitoring.

FAQ

Is the billing production-ready?

Yes. Stripe subscriptions are wired with webhooks so plan status stays accurate through upgrades, downgrades, and cancellations.

Can I add my own feature on top?

Yes. The starter is structured as a working shell so your unique feature slots straight in.

Are usage limits enforced securely?

Yes. Limits are checked server-side per plan, so they cannot be bypassed from the client.

Which payment methods are supported?

Whatever Stripe supports in your region, including cards and local methods.

Want Subscription SaaS MVP built for you?

Share your requirements and CodersArts Build will scope it into a fixed timeline and price, starting at ₹1,00,000.

Start this Project