The result set for the users API does not return the URL for the user's Gravatar.
For reference: http://api.stackoverflow.com/0.8/help/method?method=users
The result set for the users API does not return the URL for the user's Gravatar.
For reference: http://api.stackoverflow.com/0.8/help/method?method=users
The gravatar url can be calculated from the email hash.
string gravatarUrl = "http://www.gravatar.com/avatar/" + emailHash + "?d=identicon&r=PG";
More gravatar info.
?s=128&d=identicon&r=PG
As part of the response you get the email hash, which you can use to construct the proper request to Gravatar:
"email_hash": {
"description": "email hash, suitable for fetching a gravatar",
"values": "string"
},