The Google Site Verification API lets users develop applications or services that automate the process of verifying ownership of a site or domain. This is necessary as some Google services can only be used by site or domain owners.
Some features of the API include:
Request a site verification token to place on user's domains or websites.
Programmatically run a request that checks for the verification token and validates that the authenticated user is an owner of the domain or site.
Integrate into applications that programmatically provision other Google services.
The API uses RESTful calls and responses are formatted in JSON.