ESPN Fantasy Football API
In case anyone else is wondering the same thing, I just got the answer through another channel. A friend of mine reached out to a contact of his at ESPN who told him that ESPN does "not currently offer public Fantasy APIs and are not actively soliciting Fantasy Football app partners at this time".
I don't know what position this contact holds at ESPN, but have to assume they are knowledgeable.
I created a project Fantasy-Football-IO, that scrapes ESPN and Yahoo Fantasy Football sites for this data. It also provides a portal to view all your ESPN/Yahoo teams, standings, players and stats.
ESPN currently do not provide open API for this.But you can also try yahoo YQL (https://developer.yahoo.com/yql/) for getting data.