A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.
stack.PHP is a PHP wrapper for the StackExchange API created by George Edison.
Use for questions that pertain to developer tools when used in conjunction with an app, script or library that utilizes the Stack Exchange API and/or site.
For scripts and applications that interact with the Stack Exchange Data Explorer (SEDE). Support questions for SEDE are better asked on Meta Stack Exchange.
For questions that use the Really Simple Syndication feeds across the sites to offer additional features to users.
For questions related to the Stack Exchange elections. This can be the elections page, criteria and/or statistics surrounding elections.
For questions about general applicable legal aspects on using the Stack Exchange API or the data obtained from it
for question about the use of parameters when calling the Stack Exchange API
Stack Exchange API Contest (Completed in August 2010). This is for questions about or entries therein.
For Stack Apps scripts that modify the top bar of Stack Exchange sites.
For scripts and/or apps that are for fun or the (re)-enable fun on the sites or in chat.
For questions about the /events endpoint of the API
For questions about retrieving tag wikis with the Stack Exchange API. There is no option to edit them.
Questions about tools for: the favorite question feature, the favorite tags feature, or extending "favoritism" to other features.
A script designed to run with the extensions Stylus, Stylish, etc. -- to alter the look of a site via CSS. A subset of, but not the same as, the [style] tag.
For questions about testing apps, scripts or libraries that use the Stack Exchange API and/or integrate otherwise with the site.
For questions that use Silverlight as runtime platform to use the Stack Exchange API.
An open source content management system (cms) for creating websites and blogs. Its functionality can be extended through functions of blocks of code, which can be grouped into separate executables ca…
For questions about the date parameters/values as used by the API and their format. Use this tag as well for questions about dates found in the UI of an SE site if you have a script or app that levera…
For question about the display_name property as found in the several user types in the API or for scripts that add features to the display name as found on the site
For questions about caching results of API calls and / or how caching affects user scripts when used on the Stack Exchange sites.
For questions about apps, scripts and libraries that make offline use of Stack Exchange content possible.
For questions about apps, libraries or userscripts that provide insight in how reputation of a user came to be.
For questions where the use of the API requires JSON with Padding (JSONP) to work around cross-domain Ajax limitations.
For questions about creating or understanding the URLs used to call the Stack Exchange API or OAuth end-points
A bounty is a way to get additional attention for a question by offering some of your own reputation for great answers.
Questions about displaying things with minimal latency, or apps that do so.
For questions about the aspects of related questions, tags or site.
Microsoft's "Universal Windows Platform" (UWP) for app development.
Locked posts can't be: Edited, Voted on, Commented on, Answered, nor Flagged with most flags. Use this for questions with how the API handles such posts, or for tools/apps/scripts that deal with lock…
For questions about using the Stack Exchange API with the C++ programming language. General questions about C++ are off-topic
For questions about using the Stack Exchange API with the Objective-C programming language. General questions about Objective-C are off-topic but might be asked on Stack Overflow.
For questions about the /questions/unanswered endpoint
For Stack Exchange applications which interact with Twitter. General software development questions about Twitter can be asked on Stack Overflow; end user questions on Web Applications Stack Exchange,…
For questions about Stack Applet, an app that offers an indicator for monitoring your Stack Exchange accounts.