Fan-to-fan ticket marketplace Seatwave is the latest company to join The Echo Nest‘s Rosetta Stone project, meaning that developers will be able to integrate ticketing features into their apps seamlessly along with data from a range of other APIs.

The Rosetta Stone project, so named because it allows different APIs to understand each other – like the artefact of the same name allowed translation of Egyptian hieroglyphs – already supports likes of the Musicbrainz database, Facebook artist pages, and songs on Rdio and 7Digital. Twitter came on board recently, to allow easy integration of tweets and usernames from verified accounts.

Now with Seatwave, developers can incorporate relevant event dates and purchase links into music apps. However, they can also earn revenue for ticket sales through their apps too. Seatwave’s Discovery API allows developers to display content from Seatwave and earn 35% of net revenue for tickets sold. Meanwhile, its Purchase API allows developers to add a white-labelled ticket-purchasing capability to their apps. The percentage of net revenue for tickets sold based in this case, depends on contract terms with the artist in question.

The announcement comes ahead of Music Hack Day San Francisco, at which The Echo Nest hopes the new API will be put to use by the assembled developers. For an idea of what these days can achieve, see our recent coverage of Midem Hack Day.