Microsoft Bing’s Content Submission API Now in Public Beta Microsoft has moved its Bing Content Submission API into beta, after two years of private beta. One of the challenges search engines face is keeping up with the constant influx of new websites and content. As a result, search engines use automated software that “crawls” the web, indexing it and adding new sites to the search results. Two years ago, Microsoft introduced its Bing Content Submission API as a way for webmasters to manually submit new URLs. After spending the last two years in private beta, Microsoft is opening the doors to a public beta.