The LocalBitcoins Go SDK by Zach Latta allows to integrate the search of bitcoins via API by locating possible sellers and buyers. Authentication is available at https://localbitcoins.com/api-docs/#toc1
Developers are definitely worth their weight in gold. The Royal Canadian Mint has introduced a digital currency called MintChip and has thrown open a Developer Challenge. The challenge wants developers to create digital payment solutions using the MintChip API and the best applications stand to win gold. Yes, you read that right, actual physical gold.
Our API directory now includes 39 affiliate APIs. The newest is the Omnistar API. The most popular, in terms of mashups, is the Best Buy BBYOpen Products API. We list 8 Best Buy BBYOpen Products mashups. Below you'll find some more stats from the directory, including the entire list of affiliate APIs.