reCAPTCHA Terms of Service

By using this API, you consent to be bound by these terms in addition to the Google APIs Terms of Service ("API ToS") at http://developers.google.com/terms.

Section 1: Permitted Usage

You are permitted to use the API only for the purpose of receiving the determination of whether or not there is high confidence that the third party interacting with your website is a human or abusing the service.

Section 2: Prohibitions

In addition to the prohibitions in Section 4 of the API ToS, the following prohibitions apply:

• You may not store the reCAPTCHA API content or display it multiple times.
• You may not use the reCAPTCHA API content as input to algorithms that attempt to process it.

Section 3: Additional License Grant

The license granted in Section 5 "Submission of Content" of the API ToS is extended to include:

• Usage of the end-user-supplied solutions for the limited purpose of operating, promoting, and improving Google services, and to develop new ones.
• Usage of any other data collected from sites that use reCAPTCHA to provide, maintain, protect and improve reCAPTCHA and other Google anti-spam services.

Last modified: April 26, 2013