I Built SaaS! POST Data, Get an API — No Backend Required

Dima Savchenko — Wed, 17 Dec 2025 17:37:02 +0000

Hi everyone,

So I built Supaserver — a backend that creates itself.

What Is Supaserver?

Supaserver is a REST API proxy that automatically creates endpoints and stores data. No configuration, no boilerplate, no deployment headaches.

Here's the entire workflow:

Store data (endpoint is created automatically)

curl -X POST https://api.supaserver.app/tasks?apikey=dk_705b3400ab -H "Content-Type: application/json" -d '{"title": "Launch on DEV.to", "done": false}'

Retrieve it immediately

curl https://api.supaserver.app/tasks?apikey=dk_705b3400ab

That's it. No setup. The /tasks endpoint didn't exist before — Supaserver created it when you sent data.

Why I Built This

I wanted something where I could just send data and have it stored, retrieved, updated, deleted — without thinking about databases or servers.

Quick Examples

Create and Fetch Users

await fetch('https://api.supaserver.app/users?apikey=dk_705b3400ab', {
  method: 'POST',
  body: JSON.stringify({
    name: 'Alex',
    email: 'alex@example.com'
  })
});

Get all users

const response = await fetch('https://api.supaserver.app/users?apikey=dk_705b3400ab', {});
const users = await response.json();

Full CRUD Out of the Box

Method	Endpoint	Action
`POST`	`/tasks`	Create new task
`GET`	`/tasks`	Get all tasks
`GET`	`/tasks/:id`	Get single task
`PUT`	`/tasks/:id`	Update task
`DELETE`	`/tasks/:id`	Delete task

All endpoints support filtering, sorting, and pagination:

GET /tasks?sortBy=createdAt&sortOrder=desc&limit=10

What's Under the Hood

NestJS backend with MongoDB
JWT authentication + API keys
Data isolation — each user's data is completely separate
Built-in request tester — like Postman, but in your browser

Who Is This For?

Indie hackers building MVPs fast
Hackathon participants who need a backend in minutes
Students learning frontend without backend complexity
Developers prototyping ideas before committing to infrastructure

Try It Free

Supaserver is live at supaserver.app

You can:

Sign up (free)
Get your API key
Start sending data immediately

No credit card, no complex setup.

I'd Love Your Feedback, especially if you've launched a SaaS project ;)

I'm curious what you think:

Is this useful for your workflow?
What features would make it better?
Would you use it for a real project?

Thanks for reading!

Drop a comment or find me on Twitter @dima_build

Forem: Dima Savchenko