---
lang: en
title: 'API docs: index'
keywords: LoopBack 4.0, LoopBack 4
sidebar: lb4_sidebar
editurl: https://github.com/strongloop/loopback-next
permalink: /doc/en/lb4/apidocs.index.html
---

<!-- Do not edit this file. It is automatically generated by API Documenter. -->

[Home](./index.md)

## API Reference

## Packages

|  Package | Description |
|  --- | --- |
|  [@loopback/authentication](./authentication.md) |  |
|  [@loopback/authentication-passport](./authentication-passport.md) |  |
|  [@loopback/authorization](./authorization.md) |  |
|  [@loopback/boot](./boot.md) |  |
|  [@loopback/booter-lb3app](./booter-lb3app.md) |  |
|  [@loopback/context](./context.md) |  |
|  [@loopback/core](./core.md) |  |
|  [@loopback/extension-health](./extension-health.md) |  |
|  [@loopback/extension-logging](./extension-logging.md) |  |
|  [@loopback/extension-metrics](./extension-metrics.md) |  |
|  [@loopback/http-caching-proxy](./http-caching-proxy.md) |  |
|  [@loopback/http-server](./http-server.md) |  |
|  [@loopback/metadata](./metadata.md) |  |
|  [@loopback/model-api-builder](./model-api-builder.md) |  |
|  [@loopback/openapi-spec-builder](./openapi-spec-builder.md) |  |
|  [@loopback/openapi-v3](./openapi-v3.md) |  |
|  [@loopback/repository](./repository.md) |  |
|  [@loopback/repository-json-schema](./repository-json-schema.md) |  |
|  [@loopback/repository-tests](./repository-tests.md) |  |
|  [@loopback/rest](./rest.md) |  |
|  [@loopback/rest-crud](./rest-crud.md) |  |
|  [@loopback/rest-explorer](./rest-explorer.md) |  |
|  [@loopback/security](./security.md) |  |
|  [@loopback/service-proxy](./service-proxy.md) |  |
|  [@loopback/testlab](./testlab.md) |  |
|  [@loopback/tsdocs](./tsdocs.md) | The <code>@loopback/tsdocs</code> package is an internal module to generate [tsdoc](https://github.com/Microsoft/tsdoc) based API docs for <code>@loopback/*</code> packages within [loopback-next](https://github.com/strongloop/loopback-next) monorepo managed by [Lerna](https://github.com/lerna/lerna)<!-- -->.<!-- -->It's built on top of [Microsoft API Extractor](https://api-extractor.com)<!-- -->:<!-- -->- [api-extractor](https://github.com/Microsoft/web-build-tools/tree/master/apps/api-extractor) - [api-documenter](https://github.com/Microsoft/web-build-tools/tree/master/apps/api-documenter) |


