The Microsoft Cognitive Services Knowledge Exploration Service (KES) API interprets natural language queries, and provides auto-completion suggestions. This API evaluates structured queries and returns information about matched objects; also, it provides attribute visualizations and interactive faceted experiences. Currently, there is a free plan available, and a standard option with a price based on Azure usage. The KES API uses JSON for data exchange, and API Keys for authentication.
The following is a list of SDKs from our SDK directory that matched your search term. Though your definition of an SDK may differ, in our world, we define SDKs as platform- specific tools for consuming existing APIs of the sort we list in our API directory. For example, the Ruby SDK for consuming the Twitter Ads API. If you think an SDK, API, or other asset is missing from our directory, be sure to check our guidelines for making contributions to ProgrammableWeb.