Learn More About WordStream's Keyword Tool API (For Programmers)

Learn More About WordStream's Keyword Tool API

Leverage Over 1 Trillion Search Queries

WordStream now offers an API (application programming interface) for the Free Keyword Tool and the Free Keyword Niche Finder, allowing developers to implement the tools on their own sites and in their own applications.

The Free Keyword Tool by WordStream [5] provides extensive, relevant keyword and related keyword suggestions—far more than other free keyword tools and more than many paid tools—fast and completely free.

By using the Free Keyword Tool API, you'll be able to leverage the same comprehensive dataset we use to return hundreds of thousands of relevant keyword suggestions to users every day. This data, representing over a trillion search queries and hundreds of millions of related terms, is aggregated from a number of diverse sources through industry partnerships with search engines, Internet service providers and browser toolbars, resulting in a less biased mix of head and long-tail terms. Now your users can benefit from all the work we've done to ensure the fastest, most relevant keyword suggestions available free anywhere! 

The Keyword Niche Finder [6] is an innovative tool that returns structured keyword suggestions rather than a disorganized list. Using this keyword API will allow your users to obtain similar results to the Free Keyword Tool, but with those keywords grouped, organized, and ready to implement in high-performance PPC and organic search campaigns.

What can I do with the WordStream Keyword Tool API?

The Keyword Tool API allows you to programmatically download lists of keywords (sourced from our huge keyword database) related to a seed keyword. Using the API, you can embed the Free Keyword Tool or Keyword Niche Finder on your own site or application, giving your user base access to all the functionality of these keyword tools without leaving your site.

What kind of search volume data is included?

WordStream's proprietary Relative Volume information is included. Relative volume is our estimate of how often a particular keyword is searched on. A higher relative volume means that the keyword is searched on more frequently. Absolute search volume data from search providers is not included.

How do I use the Keyword Tool API?

The Keyword Tool API is a JSONP-based API, designed for web programming. You can learn more by reading the WordStream Free Keyword Tool API documentation [2] and Keyword Niche Finder API documentation [7], which describes the various functions, arguments, and return values.

Is there a query limit for the API?

Yes. By default, users are limited to 50 free units per month to handle casual usage. Contact us [8] if you have greater query requirements.

But where can get an API Key?

The "key" is the email address that you use when you sign up [4]. The password is the password that you used when you signed up.

How much does it cost? What is an API Unit?

The WordStream Keyword API is available for purchase in a monthly subscription plan. The subscription plan is based on the anticipated usage of the API on a monthly basis. Different API calls performed consumes a certain number of API units. View our API Pricing [3] and see the chart below to determine what an API unit consists of:

Please note:

• Unused API units from one month do not roll over into the next month.
• Please contact us [8] for more information on signing up for the Keyword Tool API.