APT from Yahoo

APT brings advertisers, publishers, ad networks, and agencies together in a single system, making buying and selling advertising easier and more profitable for all.

Apache Hadoop

Apache Hadoop is an open source Java software framework for running data-intensive applications on large clusters of commodity hardware, allowing storage and retrieval of large distributed data sets.

Connected TV

The Yahoo Connected TV Platform® allows developers to write TV Apps using JavaScript. Create apps that take advantage of big-screen HD TVs and reach millions of TV viewers around the world.


Contacts are relationships that exist in your Yahoo address book, such as those entered from across the Yahoo Network like Yahoo Mail and Yahoo Messenger. The API provides read and write access.

Content Analysis

Content Analysis detects, ranks, and resolves entities in unstructured content and classifies a document against our taxonomy.

Fantasy Sports

Yahoo Fantasy Sports allows users to compete against each other using statistics from real-world competitions. The API provides rich data on leagues, teams and players.


Flickr is a photo-sharing community that enables users to upload, tag and comment on their photos and other users photos. The API provides viewing and uploading access.


Yahoo GeoPlanet is a resource for managing all geo-permanent named places on Earth. The API provides an open, permanent, and intelligent infrastructure for geo-referencing data on the internet.

Mail Web Service

Yahoo Mail is a free, web-based email service. The API lets you display message summary information, parse message contents, manage folders, and compose and send messages.


Mojito, is a free, open source JavaScript MVC framework for building high-performance, device-independent HTML5 applications running on both client and server.


OAuth is a simple, secure, and quick way to publish and access protected data (photos, videos, contact list).


OpenID is an open standard that makes it easier for users to login to sites. Yahoo is an OpenID supplier, meaning users can login to your site with their Yahoo ID.


Pipes is a powerful composition tool to aggregate, manipulate, and mashup content from around the web.


PlaceFinder is a geocoding Web service that helps developers make their applications location-aware by converting street addresses or place names into geographic coordinates (and vice versa).


Placemaker helps developers make their applications location-aware by identifying places mentioned in text, disambiguating them and returning unique identifiers (WOEIDs).


A set of small, responsive CSS modules that you can use in every web project.

Social Directory

Social Directory describes a user's identity on Yahoo, including their Yahoo profile and relationships information. The API provides read and write access to public and private information.

Term Extraction

The Term Extraction Web Service provides a list of significant words or phrases extracted from a larger content.


YSlow is a Firefox add-on (integrated with the Firebug development tool) that analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages.

Yahoo Answers

Yahoo Answers is world's leading Q&A site. Our APIs let your users ask and answer questions on your site, and provides access to query and display interesting content from our database of resolved questions.

Yahoo Application Platform

The Yahoo Application Platform enables developers to create and deploy their applications across the Yahoo network of sites. It is based on, and supports, open standards including Open Social.

Yahoo BOSS

BOSS is Yahoo's open search web services platform. Developers can use BOSS to build and launch web-scale search products that utilize the entire Yahoo Search index.

Yahoo Design Pattern Library

The Design Pattern Library shares user interface design patterns vetted by Yahoo with the web design and development community.

Yahoo Finance

The Finance RSS feeds from Yahoo provide a variety of information including top financial stories, dynamic feeds for companies based on ticker symbol, and articles by Financial columnists.

Yahoo Messenger

Yahoo Messenger is the premier instant messaging (IM) platform. The SDK offers a platform for contact and group management, presence, real-time communications, and data transfer.

Yahoo Query Language

The YQL platform provides a single endpoint service that enables developers to query, filter, combine, execute and store data across Yahoo and beyond.

Yahoo RSS Feeds

RSS is a mechanism for web site developers to publish headlines and frequently-updated content as a web feed. Yahoo provides a variety of product and service RSS Feeds.

Yahoo Search Marketing

Yahoo Search Marketing allows third parties to advertise their business in search results on Yahoo and other popular sites. The API lets you manage campaigns, pull reports, set bids and more.

Yahoo User Interface (YUI) Library

YUI is a library of JavaScript utilities and controls for building richly interactive web applications using techniques such as DOM Scripting, DHTML, and Ajax.

Yahoo Weather RSS Feed

The Weather RSS feed enables you to get up-to-date weather information for your location.