# Introduction zend-http provides the HTTP message abstraction used by [zend-mvc](https://zendframework.github.io/zend-mvc/), and also provides an extensible, adapter-driven HTTP client library. It provides the following abstractions: - Context-less `Request` and `Response` classes that expose a fluent API for introspecting several aspects of HTTP messages: - Request line information and response status information - Parameters, such as those found in POST and GET - Message Body - Headers - A client implementation with various adapters that allow for sending requests and introspecting responses. > ### Not PSR-7! > > This library **does not** support [PSR-7](http://www.php-fig.org/psr/psr-7), as > it predates that specification. For PSR-7 support, please see our > [Diactoros component](https://zendframework.github.io/zend-diactoros/). ## Zend\Http Request, Response and Headers The request, response and headers implementations of the zend-http component provides a fluent, object-oriented interface for introspecting information from all the various parts of an HTTP request or HTTP response. The primary classes are `Zend\Http\Request` and `Zend\Http\Response`. Both are “context-less”, meaning that they model a request or response in the same way whether it is presented by a client (to **send** a request and **receive** a response) or by a server (to **receive** a request and **send** a response). In other words, regardless of the context, the API remains the same for introspecting their various respective parts. Each attempts to fully model a request or response so that a developer can create these objects from a factory, or create and populate them manually.