We just added JSONP to the Osmek API, thanks to a user request. You can try it out by directing a request to http://api.osmek.com/feed/jsonp and adding your api_key and section_id to the url.

This brings up an issue that we have yet to tackle - read only API keys. Currently you can read or write to Osmek with any API key. We're now turning our attention to granting permissions to API keys. Our goal is that you will be able to great section specific & action specific permissions to API keys. So if you have an API key you are going to use with JSONP (visible to the public) you could grant it read only access to a single section.

Give JSONP a try and let us know how it works for you, and stay tuned for API key permissions!