Keek, social video network, recently announced the release of the Keek API. Alongside the API launch, Keek established a developer portal that includes tools and resources to assist developers in integrating Keek with third party applications. The Keek API grants developers access to public keeks (i.e. 36 second video updates), search, user profiles, klusters, and more.
The Aviary Effects API that helps developers create their own Instagram recently made the API public and updated its developer portal. In addition, the company is offering a short-term developer contest, so you'll need to get going quickly.