We recommend that you sign up for a Google Apps domain account as a sandbox to develop and test within the proper context. See the table below for the appropriate Google Apps edition for the API(s) you are looking to use. If you do not already have a Google Apps domain account that you can use as a development sandbox, sign up for one by clicking one of the buttons below. Once you have an account, dive into the API documentation and get started.

	Google Apps Standard Edition	Google Apps Premier Edition	Google Apps Education Edition*
Provisioning API
Reporting API
Email Migration API
Email Settings API
Single Sign-On service
Email gateway interface
Calendar data API
Spreadsheets data API
Google Gadgets API
Google Talk open protocols
Price	Free	$50 / user account / year Limited time offer: Free 30-day trial**	Free

See full edition comparison table

* Available to accredited not-for-profit K-12 schools, colleges and universities, as described in the Google Apps Education Edition Terms of Service.
** You will be asked to provide a credit card number to sign up for Google Apps Premier Edition. However, you can cancel at any time before the end of your free trial and your card will not be charged.