Amplication Has a Free API You've Never Heard Of

Amplication is an open-source backend development platform that generates production-ready Node.js services from your data model. Define your entities, and it generates REST API, GraphQL, auth, and database code — all fully customizable.

What Makes Amplication Special?

• Code generation — generates full backend from data model
• Fully customizable — generated code is yours to modify
• GraphQL + REST — both APIs generated automatically
• Auth built-in — JWT, roles, permissions out of the box
• Free tier — unlimited services, 3 team members

The Hidden API: Auto-Generated Backend

Define your data model in the Amplication UI or via code:

{
  "entities": [{
    "name": "Product",
    "fields": [
      { "name": "title", "dataType": "SingleLineText", "required": true },
      { "name": "price", "dataType": "DecimalNumber", "required": true },
      { "name": "description", "dataType": "MultiLineText" },
      { "name": "category", "dataType": "Lookup", "relatedEntity": "Category" },
      { "name": "inStock", "dataType": "Boolean", "required": true }
    ]
  }]
}

Amplication generates:

// REST endpoints (auto-generated)
GET    /api/products
GET    /api/products/:id
POST   /api/products
PATCH  /api/products/:id
DELETE /api/products/:id

// GraphQL (auto-generated)
query {
  products(where: { inStock: { equals: true } }, orderBy: { price: Asc }) {
    id
    title
    price
    category { name }
  }
}

mutation {
  createProduct(data: { title: "Widget", price: 9.99, inStock: true }) {
    id
    title
  }
}

Plugin System API

// Extend generated code with plugins
import { AmplicationPlugin } from '@amplication/code-gen-types';

export class MyPlugin implements AmplicationPlugin {
  register() {
    return {
      CreateEntityService: (eventParams) => {
        // Add custom logic to generated services
        return {
          ...eventParams,
          templateMapping: {
            ...eventParams.templateMapping,
            CUSTOM_METHOD: 'async customMethod() { /* your logic */ }'
          }
        };
      }
    };
  }
}

Quick Start

npx @amplication/cli init
npx @amplication/cli generate
cd server && npm install && npm start

Why Teams Choose Amplication

A startup CTO shared: "We built our MVP in 3 days instead of 3 weeks. Amplication generated the entire CRUD backend, auth, and GraphQL API. We just added business logic. When we outgrew the generated code, we ejected and owned everything."

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