Updated API now available to all domain name registrars.
Google has long partnered with GoDaddy and eNom to make registering a domain and connecting it to Google Apps easy.
Google is working to expand the number of registrars with this functionality and is introducing a new API to make it much easier.
The API is available to all registrars. It has reduced the number of steps required to verify and transfer email from 10 down to 3 steps and users are no longer required to leave the Google Apps signup flow to complete domain registration.
Domaindiscount24.com, a subsidiary of Key-Systems.net
GMO Internet Group
Heartinternet.co.uk, Domain Monster and 123-reg.co.uk
Network Solutions, a subsidiary of Web.com
I imagine becoming a “Google Apps Ready Registrar” would have a number of benefits to domain name registrars. Registrars can apply here.