MicroBiz - All-in-One Finance and Operations Dashboard for Micro-SaaS Founders

Micro-SaaS founders log into 6 different tools daily: Stripe for payouts, Plaid for spending, email for refunds, analytics platform for metrics, AWS for costs, and a spreadsheet for projections. MicroBiz combines all of them into one obsidian-dark dashboard with a single metric that matters: 'Are we profitable this month?'

𝕏 Post Reddit HN

Difficulty

beginner

What is it?

A founder with a $2k MRR micro-SaaS spends 45 minutes every morning gathering data: pulling Stripe dashboard for revenue, checking bank account for expenses, reviewing AWS billing, calculating runway, tracking churn, noting refunds. MicroBiz solves this with one unified interface: connect Stripe, Plaid, and AWS once, then one dashboard shows revenue, expenses, and profitability in real-time. The core features: (1) revenue sync from Stripe (MRR, churn, cohort breakdown), (2) expense sync from Plaid and AWS, (3) one-line profit calculation, (4) runway projection (months of cash remaining), (5) cohort retention curves, (6) monthly P&L summary. The target is micro-SaaS founders with $500–$50k MRR who don't need Stripe Atlas complexity but want financial clarity. Built with Stripe API (charge data), Plaid API (spending), AWS Cost Explorer API, and Supabase for aggregation. Why 100% buildable right now: Stripe, Plaid, and AWS all have stable read-only APIs, and the math is straightforward (revenue minus expenses equals profit). No machine learning needed, just reliable data piping and a clean UI.

Why now?

Stripe API matured in 2024; Plaid became affordable for smaller use cases; micro-SaaS is peak trend in 2025; financial clarity is top concern for founders right now.

▸Stripe OAuth and sync (MRR, churn rate, customer cohorts) (Implementation: Stripe API with pagination, store in Supabase, daily cron refresh)
▸Plaid OAuth for bank account and spending (Implementation: Plaid link and API, map transactions to expense categories)
▸AWS Cost Explorer API integration (Implementation: boto3 or AWS SDK, fetch daily spend)
▸All-in-one profit dashboard: revenue, expenses, net profit, runway (Implementation: Recharts, simple aggregation queries)
▸P&L export (monthly CSV) (Implementation: generate CSV from Supabase data, Resend email)

Target Audience

800+ micro-SaaS founders with $1k–$50k MRR running solo or with 1–2 cofounders, especially those already on Stripe + AWS.

Example Use Case

Tom runs a $8k MRR SaaS. Every morning he opens Stripe (revenue: $8,200), Plaid (expenses: $3,400), and AWS console (costs: $1,200). With MicroBiz, all three sync automatically and he sees in one second: Revenue $8.2k, Expenses $4.6k, Profit $3.6k, Runway 14 months. If revenue drops or expenses spike, he sees it immediately without context-switching. He keeps MicroBiz open on a second monitor and knows exactly how the day is going.

User Stories

▸As a micro-SaaS founder, I want to see my revenue, expenses, and profit on one dashboard without logging into Stripe and Plaid separately, so that I can check the health of my business in 30 seconds.
▸As a founder, I want to know my runway (months of cash left) automatically calculated, so that I can make hiring and investment decisions confidently.
▸As a bootstrapped founder, I want to track my AWS costs alongside revenue to understand my unit economics, so that I can identify if I'm profitable or burning money.

Acceptance Criteria

Stripe Sync: done when revenue, churn rate, and customer count fetch and display correctly. Plaid Sync: done when transactions fetch and categories populate automatically. Profit Calculation: done when Revenue minus Expenses equals correct profit on dashboard. Runway: done when runway calculation is accurate given current burn rate. Export: done when monthly P&L CSV downloads with correct data.

Is it worth building?

$19/month × 80 founders = $1,520 MRR at month 2. $49/month × 150 power users = $7,350 MRR at month 5.

Unit Economics

CAC: $0 (organic social + ProductHunt). LTV: $228 (12 months at $19/month average). Payback: immediate. Gross margin: 90% (minimal API costs, hosting cheap).

Business Model

SaaS subscription with free tier (one Stripe account, basic metrics).

Monetization Path

Free tier (Stripe only, 30-day history). $19/month (Stripe + Plaid, full history, P&L export). $49/month (Stripe + Plaid + AWS, cohort retention, runway forecasts, team access).

Revenue Timeline

First dollar: week 2. $1k MRR: month 2. $5k MRR: month 5.

Estimated Monthly Cost

Stripe API: free. Plaid: $25 (Developer tier for test data). AWS Cost Explorer: free. Vercel: $20. Supabase: $25. Resend: $15. Sentry: $29. Total: ~$114/month.

Profit Potential

Sustainable at $1.5k–$5k MRR with minimal overhead.

Scalability

High — can expand to multi-currency support, automated invoicing, team expense management, and cap table tracking.

Success Metrics

Week 1: 300 signups. Week 2: 25 paid. Month 2: 65 paying founders, 80% retention.

Launch & Validation Plan

Interview 20 micro-SaaS founders about their finance pain points, survey on Twitter/X, build landing page with dashboard mockup, recruit 10 beta testers with active Stripe + Plaid accounts, validate API integrations with test data, confirm runway calculations match founder expectations.

Customer Acquisition Strategy

First customer: reach out to 30 founders on IndieHackers and Twitter/X with free setup offer. Then: ProductHunt launch, r/Entrepreneur and r/startups posts, Twitter/X content around micro-SaaS financial planning, sponsorship of micro-SaaS communities.

What's the competition?

Competition Level

Low

What's the roadmap?

Feature Roadmap

V1 (launch): Stripe sync, Plaid sync, profit dashboard, runway, basic charts. V2 (week 3–4): AWS Cost Explorer, expense categorization, monthly P&L export, cohort retention. V3 (month 2+): forecasting, multi-currency, team accounts, Slack alerts.

Milestone Plan

Phase 1 (Week 1–2): Stripe and Plaid OAuth working, API syncs tested with real accounts, profit calculation logic correct. Done when dashboard displays real founder data accurately. Phase 2 (Week 3–4): dashboard UI polished, export feature working, error handling for API failures, landing page optimized. Done when 10 beta users can use the product without issues. Phase 3 (Month 2): monitoring and alerting set up, Sentry live, public launch, ProductHunt submission. Done when 50+ founders on paid tier.

How do you build it?

Tech Stack

Next.js, Stripe API, Plaid API, AWS Cost Explorer API, Supabase, Recharts, Stripe (for subscription), Resend — build with Cursor for API integration, Lovable for dashboard UI, v0 for metric cards.

Time to Ship

2 weeks

Required Skills

Stripe and Plaid OAuth, basic Next.js, simple financial calculations.

Resources

Stripe docs, Plaid docs, AWS Cost Explorer docs, Next.js tutorial, Recharts documentation.

MVP Scope

Pages: /login (email + OAuth), /dashboard (main metrics + cards), /settings (connect Stripe/Plaid/AWS), /export (P&L download). API: /api/stripe-sync, /api/plaid-sync, /api/aws-sync, /api/calculate-metrics. DB: users, stripe_accounts, plaid_accounts, aws_accounts, transactions, metrics_cache. Components: MetricCard, TrendChart, ExpenseBreakdown, RunwayCalculator.

Core User Journey

Sign up via email -> authorize Stripe -> authorize Plaid -> dashboard loads with revenue, expenses, and profit in under 30 seconds -> bookmark and check daily.

Architecture Pattern

Stripe OAuth -> API key stored in Supabase Vault -> cron job queries Stripe API for charges and customers -> Plaid OAuth -> cron fetches transactions -> AWS Cost Explorer API -> all data stored in Postgres -> dashboard queries aggregated metrics -> real-time display.

Data Model

User has one StripeAccount and one PlaidAccount. StripeAccount has many Charges and many Customers. PlaidAccount has many Transactions. User has MetricsCache storing daily calculations.

Integration Points

Stripe API for revenue and customer data, Plaid API for bank transactions and spending, AWS Cost Explorer API for infrastructure costs, Supabase for storage and queries, Resend for email exports.

V1 Scope Boundaries

V1 excludes: invoicing, multi-currency support, team accounts, tax calculations, forecasting models, integrations with other payment processors (Paddle, Gumroad).

Success Definition

A micro-SaaS founder installs the product, connects Stripe and Plaid in 3 minutes, sees a real-time profit number on their dashboard, and doesn't uninstall.

Challenges

Stripe API has a modest rate limit; need to batch requests. Plaid requires premium tier for accurate transaction categorization. AWS Cost Explorer API lag can be 24 hours — founders want real-time. Managing multiple API keys per user securely is critical.

Avoid These Pitfalls

Do not attempt real-time AWS cost updates — they lag 24h. Use cached estimates and refresh daily. Do not over-engineer expense categorization; let Plaid handle it and allow manual category overrides. Do not build invoicing before validating that founders actually want to invoice from MicroBiz (most use Stripe or Wave already).

Security Requirements

Auth: Supabase Auth with email + password. RLS: users can only access their own Stripe/Plaid data. API keys: stored encrypted in Supabase Vault, never logged. Rate limiting: 10 req/min per user (Plaid limits). Input validation: all form inputs validated. GDPR: data deletion endpoint removes all accounts and transactions on request.

Infrastructure Plan

Hosting: Vercel. Database: Supabase (Postgres). CI/CD: GitHub Actions. Cron jobs: Vercel Functions for daily sync. Monitoring: Sentry for errors, Vercel Analytics for traffic. Cost: Vercel $20, Supabase $25, Resend $15, Sentry $29, Plaid dev tier $25. Total: ~$114/month.

Performance Targets

Expected DAU at launch: 50. Requests per day: 300. Dashboard load: under 2s (LCP). Metric calculation: under 1s. Caching: metrics cached for 1h, API results cached for 4h.

Go-Live Checklist

☐Security: API keys securely stored, Stripe/Plaid scopes reviewed
☐Payments: Stripe subscription tested
☐Errors: Sentry live
☐Monitoring: Vercel Analytics active
☐Domain: custom domain and SSL
☐Legal: privacy policy, terms published
☐Beta: 10 founders tested and approved
☐Rollback: previous Vercel deployment saved
☐Launch: ProductHunt post ready, Twitter thread drafted, r/Entrepreneur post queued.

How to build it, step by step

1. npx create-next-app microbiz. 2. npm install @supabase/supabase-js stripe plaid recharts resend. 3. Set up Supabase tables (users, stripe_accounts, plaid_accounts, transactions, metrics). 4. Build Stripe OAuth flow (client + server-side token exchange). 5. Build Plaid link integration. 6. Create /api/stripe-sync endpoint to fetch charges and customers. 7. Create /api/plaid-sync endpoint to fetch transactions. 8. Build /dashboard page with MetricCard components (revenue, expenses, profit, runway). 9. Add TrendChart component for monthly profit history. 10. Deploy and test with beta user Stripe + Plaid accounts.

Generated

March 25, 2026

Model

claude-haiku-4-5-20251001

← Back to All Ideas