Open Source • Forever Free

Build Library UIs Without a Backend

LibraryVault is a free, open-source API that provides fake library data perfect for prototyping, testing, and learning. No server setup required.

6+
API Endpoints
1000+
Books
4
User Roles
Requests/Month

Everything You Need

LibraryVault provides a complete, realistic library management API with all the features you need to build and test your library applications.

📚

Complete Books Database

Access a comprehensive collection of over 1,000 books with realistic metadata including ISBN, publication year, categories, and availability status.

🔐

Role-Based Access Control

Experience real authentication with JWT and four distinct user roles: Member, Librarian, Admin, and Super Admin, each with specific permissions.

Lightning Fast

Response times optimized for development. Test your UI responsiveness with realistic data loading and edge case handling.

📖

Book Borrowing System

Full borrowing lifecycle support with due dates, return tracking, late fees, and member borrow limits. Perfect for testing real library workflows.

🛠️

Easy Integration

No authentication key required. Make requests directly from your frontend. Works with any HTTP client library or framework.

🚀

Open Source

100% open source and community-driven. Modify the code, host your own instance, or contribute improvements back to the project.

Get Started in Seconds

Start using LibraryVault with just a simple fetch request:

// Login to get a token
const res = await fetch(`http://localhost:8000/auth/login`, {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({
    email: 'member@example.com',
    password: 'password123'
  })
});

const { token } = await res.json();

// Fetch books
const booksRes = await fetch(`http://localhost:8000/books', {
  headers: { 'Authorization': `Bearer ${token}` }
});

const { data } = await booksRes.json();
Base URL
http://localhost:8000
Auth
JWT Bearer Token
Rate Limit
1000 req/hour

Demo Credentials

Use these credentials to explore the API and test different user roles:

Member Account

Email: member@example.com
Password: password123
Permissions: Can borrow/return books

Admin Account

Email: admin@example.com
Password: password123
Permissions: Can manage users & books

Librarian Account

Email: librarian@example.com
Password: password123
Permissions: Can manage books

Super Admin Account

Email: superadmin@example.com
Password: password123
Permissions: Full system access

Ready to Build?

Start building your library management application today.