Roistr is a semantic relevance engine that can analyze information within a text and help users discover the meaning. The service can cluster or match similar documents and compare them against each other. The Roistr API lets developers integrate the full service with their web site or applications. Responses are formatted in JSON.
Roistr is a project that’s smaller than our typical API feature. It shows the falling barrier to entry in the API world even in a the demanding academic area of natural language processing and semantic analysis. The primary Roistr API function is a “best match” engine. It offers an interesting use case to demonstrate the relevance of the service: take a Twitter username and use tweets from this account to find content most relevant to the user’s interests.