You vibe-coded a sick little SaaS with v0/Cursor/Claude. The UI looks fire. The features work.
But now you need to add auth. And payments. And member gating.
You COULD vibe-code that too... but if you're unsure whether your auth code is actually secure, that's a problem.
You need auth you can trust. That's where we come in.
SaaSMun
@SaaSMun
I'm a big fan of Beag. For me, it's saved a ton of time. I just focus on the MVP and plug everything else into Beag.
# How It Works (4 Steps to Launch) #
Steps 1-4 get you live. Everything after is optional customization.
1
Connect Your Stripe
Log in to Beag.io, go to Settings, and connect your Stripe account. We verify it's ready so your payments are secure.
2
Add Your SaaS
Fill in your app details (name, URL, logo). We'll generate a custom login page and renewal page for you automatically.
3
Set Up Your Pricing Plans
Create subscription plans (monthly, yearly, whatever you want). We generate Stripe payment links for each plan. Add free trials if you want. Copy the links to your pricing page.
4
Install the Script Tag
Copy our script tag and paste it before the </head> tag on every page you want to protect. This locks your app—only paying users get in.
<scripttype="module"src="/js/beag.js"></script>
🎉 That's it! Your app is now protected and accepting payments.
# What's Included #
🔒 Secure auth you can trust (no security headaches)
💳 Stripe payments in 2 minutes (no backend needed)
👥 Member data in localStorage (email, plan, status - use it however you want)
🎨 Use our login page OR build your own (we give you a Cursor prompt)
🚀 Works with ANY stack (React, Vue, plain HTML, whatever you vibe-coded)
Hey there! We're Bank and Seree, the co-founders of Beag.io.
We created this tool because we've seen how easy it is to build micro SaaS nowadays thanks to AI. We've made basic tools ourselves—like content generators or image creators—and it's fun!
But we hit a big problem: connecting logins and payment systems to our SaaS felt super hard, especially for folks like us who aren't full-time programmers. Things like setting up databases or linking Stripe turned into a confusing mess.
We totally get it. That's why we built Beag.io—to help people facing the same challenge. Whether you're an indie developer or just someone with a hobby SaaS, we've got your back.
With Beag.io, you can skip the tough tech stuff and turn your idea into a money-making machine fast. Let's build something awesome together!
# Questions You Might Have #
Can I use this with v0/Cursor/Bolt/AI-generated code?
Absolutely! That's exactly what we built this for. Vibe-code your UI and features with AI, then drop in Beag for auth and payments. Works with any HTML/React/Vue/whatever you generated.
Why can't I just vibe-code the auth myself?
You can try, but if you're unsure whether your auth code is actually secure, that's risky. Beag handles all the security server-side so you can ship with confidence and focus on building features.
What's Beag.io all about?
We add secure authentication and Stripe payments to your static site or MVP. One script tag, 5 minutes setup. No backend code needed.
Do I need to know coding?
Just enough to copy-paste a script tag. That's it. If you can build with v0 or Cursor, you can use Beag. We even give you Cursor prompts for custom login pages.
What info do you give me?
We save your users' email, plan, start date, end date, and status in localStorage. You can use this data to make your tool smarter—like showing special features to paid users!
Is my stuff safe with you?
Yes! We keep everything safe enough for your MVP so no one sneaky can get in.
What's the difference between Beag.io and a boilerplate?
A boilerplate is like a big toy box with pieces to build your whole MVP, but you have to put it all together yourself—it takes a long time and you need to know how to play with the toys (coding). Beag.io is like a magic friend! You build your MVP first, then Beag.io adds a login, members, and a way to get money super quick — it's safe enough to sell your MVP fast. It makes selling your MVP easy and fun without the hard work!
Can I get a refund?
Yes, you can get your money back in 30 days if you're not happy. Just email us at [email protected], and we'll help you!
# Advanced Features (Optional) #
Everything below is optional—only add what you need.
🎯 Gate Features by Plan
User data (email, plan, status, dates) is saved in localStorage. Use it to show/hide paid features however you want.
// Get user data from localStorageconst email = localStorage.getItem("x_email");
const planId = localStorage.getItem("x_plan_id");
const startDate = localStorage.getItem("x_start_date");
const endDate = localStorage.getItem("x_end_date");
const status = localStorage.getItem("x_status");
🎨 Custom Login Page
Want a custom login page under your own domain? Turn on "API Login Mode" in Settings and use our Cursor prompts to build it in minutes. See setup guide →
🔌 Backend Integration with Beag API
Have a backend server? Use our API to access subscription data server-side. Perfect for syncing user data with your database, running scheduled jobs to verify subscription status, or implementing server-side feature gating. Get more control beyond localStorage with secure API authentication. See API docs →
🚀 Start Fresh with Beag Base Boilerplate
Don't have an app yet? Start with our full-stack SaaS boilerplate that comes with Beag.io pre-integrated. Includes FastAPI backend, React frontend, and everything you need to launch fast. Perfect if you're building from scratch and want a solid foundation. Check out Beag Base →
Unsure if your auth code is secure? Use Beag instead. We handle all the security stuff server-side, so you can ship with confidence.
# Ready to Make Money From Your SaaS? #
Turn your SaaS into cash with Beag.io. Get started now!
