Auth, multi-tenant data, billing, admin dashboard, transactional email — Marcus wires the boring half so you can focus on the half that's actually your idea.
Email, magic link, Google, GitHub. Password reset flows, session expiry, audit log of every login.
Subscription tiers, trials, usage-based metering, dunning emails, prorated upgrades, invoices that look like an accountant didn't lose a fight with them.
Each customer gets isolated data with row-level security. No accidental leaks between accounts; no rewrite when you add Teams.
One screen with active users, revenue this month, churn, support tickets, last 50 sign-ups. Built in, not an afterthought.
Welcome, reset, receipt, invitation, broken-build alert. All branded, all DKIM/SPF-signed, all delivered through a real ESP.
Every customer can export their data as CSV or JSON, on demand, with one click. GDPR Article 20 isn't a future ticket — it's a checkbox.
Anatomy of a Marcus SaaS
Hero, features, pricing, testimonials, FAQ, footer. SEO meta tags, sitemap, OpenGraph, schema.org. No work — just describe the angle.
Signup, login, password reset, two-factor optional, account settings. Every protected route checks session and tenant. Marcus generates the UI for whatever the product actually does — described in your own words.
Pricing page → Stripe Checkout → webhook → role assignment. Customers can change plan, update card, see invoices, cancel. You get a clean revenue chart on day one.
A separate URL, gated behind your team's SSO, where you can see every customer, refund a payment, impersonate an account for support, and read the activity log.
Daily backups, error tracking, slow-query log, uptime monitoring, on-call rotation if you want it. The stuff a senior engineer would put in by reflex.
“The hardest part of starting a SaaS isn't the business. It's the hundred decisions about auth and webhooks before you've earned a single dollar.”— Marcus exists because we got tired of those hundred decisions.
Marcus turns it into a working app with billing wired up. You spend the saved time on the part nobody else can do.
Start a SaaS →