API Management for Frontend Developers

Save, list, update and delete JSON from any frontend with plain fetch. No server, database or migrations, and a free plan to start.

Start Building See Live Demos

No Setup

Pick a project name and start sending requests

Your Key, Your Data

Every request is authorized with your API key

Easy Integration

Works with any framework

The Problem

Frontend developers often face delays in development cycles due to dependencies on backend teams for API management. This creates bottlenecks where frontend teams must wait for backend teams to create, update, or modify APIs.

  • •Slower development cycles
  • •Dependency on backend teams
  • •Limited flexibility for API changes
  • •Infrastructure complexity
Without Leaf API: hardcoded mocks
// TODO: swap for the real API once backend ships it
const todos = [
  { id: 1, title: "Mock todo", done: false },
]

// POST /todos ... waiting on ticket #482
With Leaf API: a real endpoint
const res = await fetch(
  "https://leafapi.com/api/my-app/todos",
  {
    method: "POST",
    headers: {
      "leaf-api-key": LEAF_API_KEY,
      "Content-Type": "application/json",
    },
    body: JSON.stringify({ title: "Ship it", done: false }),
  }
)

The Solution

Leaf API provides a flexible solution by empowering frontend developers to manage APIs independently, reducing the dependency on both backend and DevOps teams. Frontend developers can dynamically create, update, retrieve, and delete data through structured HTTP requests.

  • Complete API control in your hands
  • Deploy changes instantly
  • Streamlined development workflow
  • Reduced infrastructure complexity

Why Leaf API

Designed with frontend developers in mind, Leaf API provides all the tools you need to succeed.

Comprehensive CRUD Operations

Full control over your data with POST, PUT, PATCH, GET, and DELETE operations for complete resource management.

Flexible Data Structure

Create any data schema you need. Leaf API adapts to your project requirements without restrictions.

Search, Sort & Paginate

List endpoints support search, sorting and pagination out of the box, so tables and feeds just work.

API Key Access

Every request is authorized with your own API key, keeping each project's data private to you.

Easy Integration

Works seamlessly with React, Vue, Angular, Flutter, React Native, and more.

Ready for AI Agents

Connect Claude, Cursor and other AI tools through the built-in MCP server to read and write your data.

Ready to Empower Your Development?

Start on the free plan and make your first request with plain fetch. No backend required.

Start Building View Pricing