These are the requirements intended to be met in the development of client-side APIs that enable the creation of Web Applications and Web Widgets that interact with devices services such as Calendar, Contacts, Camera, etc.

This specification defines low-level events representing points of contact with a touch-sensitive surface.

This specification defines an application programming interface (API) for widgets that provides, amongst other things, functionality for accessing a widget’s metadata and persistently storing data.

This specification defines an API that enables Web pages to use the Web Sockets protocol for two-way communication with a remote host.

This specification defines an API for persistent data storage of key-value pair data in Web clients.

This specification defines a client-side API to access metadata information related to media resources on the Web.

This document describes event types that can be used for monitoring the progress of an operation. It is primarily intended for contexts such as data transfer operations specified by XMLHTTPRequest [XHR], or Media Access Events [MAE].

This document provides an interface for web applications to access timing information related to navigation and elements.

This specification defines an API that provides Web pages scripted access to geographical location information associated with the hosting device.

The XMLHttpRequest specification defines an API that provides scripted client functionality for transferring data between a client and a server, one of the core components of “AJAX”.

This specification defines several new DOM event types that provide information about the physical orientation and motion of a hosting device.

This specification adds the ability to retrieve a civic address, rather than coordinates, to the Geolocation API.

This specification defines a new DOM event type that provides information about the battery status of the hosting device and associated auxiliary devices.

This document defines an interface definition language, Web IDL, that can be used to describe interfaces that are intended to be implemented in web browsers.

This specification defines an API that allows Web application authors to spawn background workers running scripts in parallel to their main page. This allows for thread-like operation with message-passing as the coordination mechanism.

This specification defines an interface for web applications to access timing information related to navigation and elements. It is used by other specifications, like User Timing.

This specification defines an interface to help web developers measure the performance of their applications by giving them access to high precision timestamps.

This specification defines an interface for web applications to access timing information related to HTML elements.

This specification defines a means for site developers to programmatically determine the current visibility state of the page in order to develop power and CPU efficient web applications.

This specification introduces and compares two client-side APIs for processing and synthesizing real-time audio streams in the browser.

This specification describes a high-level JavaScript API for processing and synthesizing audio in web applications. The primary paradigm is of an audio routing graph, where a number of AudioNode objects are connected together to define the overall audio rendering. The actual processing will primarily take place in the underlying implementation (typically optimized Assembly / C / C++ code), but direct JavaScript processing and synthesis is also supported.

This proposal makes HTML Streams the foundation for integrated Web media processing by creating a mixing and effects processing API for HTML Streams.

This document defines APIs for a database of records holding simple values and hierarchical objects.

An API to control the device's vibrator.

This document defines a set of APIs that allow local media, including audio and video, to be requested from a platform, media to be sent over the network to another browser or device implementing the appropriate set of real-time protocols, and media received from another browser or device to be processed and displayed locally.

This specification defines an API for opening an HTTP connection for receiving push notifications from a server in the form of DOM events.

This specification provides an API for representing file objects in web applications, as well as programmatically selecting them and accessing their data.

This specification defines two mechanisms for communicating between browsing contexts in HTML document.

The XMLHttpRequest Level 2 specification enhances the XMLHttpRequest object with new features, such as cross-origin requests, progress events, and the handling of byte streams for both sending and receiving.

This document describes privacy best practices for web applications, including those that might use device APIs.

The Network Information API provides an interface for Web Applications to access the underlying network information (connection info) of the device.

This document defines an API web page authors can use to write script-based animations where the user agent is in control of limiting the update rate of the animation.

This is a sample short description for this specification; over time we will replace this description with a real one.

This specification defines an API for writing to files from web applications.

RDFa [RDFA-CORE] enables authors to publish structured information that is both human- and machine-readable. Concepts that have traditionally been difficult for machines to detect, like people, places, events, music, movies, and recipes, are now easily marked up in Web documents. While publishing this data is vital to the growth of Linked Data, using the information to improve the collective utility of the Web for humankind is the true goal. To accomplish this goal, it must be simple for Web developers to extract and utilize structured information from a Web document. This document details such a mechanism; an RDFa Application Programming Interface (RDFa API) that allows simple extraction and usage of structured information from a Web document.

Defines an API to navigate file system hierarchies and sandboxed sections of a user's local filesystem.

This specification defines HTML form enhancements that provide access to the audio, image and video capture capabilities of the device.

This specification defines an API that provides access to messaging functionality in the device, including SMS, MMS and email.

This document defines an API for displaying simple notifications to the user.

This document identifies the permissions that are needed to use specific client-side APIs which grant access to sensitive data and operations.

The Media Capture API enables access to the audio, image and video capture capabilities of the device through Javascript.

This specification defines an API to provide Web applications with access to various hardware properties of the system which they are running on, including battery status, current network bandwidth.

This document defines APIs for off-line serving of requests to HTTP resources using static and dynamic responses. It extends the function of application caches defined in HTML5.