| Modifier and Type | Class and Description | 
|---|---|
| class  | AlchemyDataNewsAlchemyData News indexes 250k to 300k English language news and blog articles every day with historical search
 available for the past 60 days. | 
| class  | AlchemyLanguageThe Alchemy Language service uses offers 12 text analysis services, each of which uses sophisticated natural language
 processing techniques to analyze your content and add high-level semantic information. | 
| class  | AlchemyVisionThe Alchemy Vision service uses deep learning innovations to understand a picture’s content and context. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | ConversationServiceThin wrapper around the Conversation Service REST API. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | DialogServiceDeprecated.  | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | DocumentConversionThe IBM Watson Document Conversion service converts provided source documents (HTML, Word, PDF) into JSON Answer
 Units, Normalized HTML, or Normalized Text. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | LanguageTranslationDeprecated.   | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | LanguageTranslatorThe IBM Watson Language Translator service translate text from one language to another and identifies the language in
 which text is written. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | NaturalLanguageClassifierThe IBM Watson Natural Language Classifier service applies deep learning techniques to make predictions about the
 best predefined classes for short sentences or phrases. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | PersonalityInsightsThe Watson Personality Insights service uses linguistic analytics to extract a spectrum of cognitive and social
 characteristics from the text data that a person generates through blogs, tweets, forum posts, and more. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | RetrieveAndRankThe IBM Watson Retrieve and Rank service helps users find the most relevant information for their query by using a
 combination of search and machine learning to find “signals” in the data. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | AlchemyServiceAbstract class which has functionality for the different Alchemy services. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | SpeechToTextThe Speech to Text service uses IBM's speech recognition capabilities to convert English speech into text. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | TextToSpeechThe Text to Speech service uses IBM's speech synthesis capabilities to convert text to an audio signal. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | ToneAnalyzerThe IBM Watson Tone Analyzer service uses linguistic analysis to detect emotional tones, social propensities, and
 writing styles in written communication. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | TradeoffAnalyticsThe IBM Watson Tradeoff Analytics service applies decision analytics technology, enabling users to avoid choice
 overload when making complex decisions involving multiple, conflicting goals. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | VisualRecognitionVisual Recognition allows you to derive insights from an image based on its visual content. | 
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