Natural language processing and text analysis. The most powerful and cost-effective NLP AI APIs, continuously updated. The most powerful and cost-effective NLP AI APIs, continuously updated. Automatically rephrase, or paraphrase an input sentence into alternate, gramatically correct text that preserves the original meaning. Automatically classify the sentiment of input text into Positive, Negative, or Neutral and a corresponding sentiment strength score. Identify the part of speech of words in a sentence. Pull out all the verbs, nouns, proper nouns, etc. from a sentence. Identify the true meaning. Fully parse a sentence into its constituent structure. Perform analytics over unstructured text to identify sentiment, key words and phrases, and much more. Identify the key entities that are referenced in unstructured text. Automatically detect the language of a text string across the world's 14 most popular languages.