## Documentation Index

Fetch the complete documentation index at: [/llms.txt](https://docs.cognigy.com/llms.txt)

Use this file to discover all available pages before exploring further.

You can select [NLU connectors](https://docs.cognigy.com/ai/platform-features/nlu/external/nlu-connectors/overview) of your choice, Cognigy native connectors, third-party connectors, or create a custom connector.

### **Cognigy NLU**  
The built-in NLU engine within Cognigy.AI, providing automatic Intent and Slot recognition.  
Link: [Cognigy NLU](https://docs.cognigy.com/ai/platform-features/nlu/external/nlu-connector-reference/cognigy-nlu)

### **Alexa**  
Integration with Amazon Alexa NLU service for voice-based input and processing.  
Link: [Alexa](https://docs.cognigy.com/ai/platform-features/nlu/external/nlu-connector-reference/alexa)

### **Dialog Flow**  
Integration with Google Dialog Flow for advanced AI-driven conversations.  
Link: [Dialog Flow](https://docs.cognigy.com/ai/platform-features/nlu/external/nlu-connector-reference/watson-assistant)

### **Lex**  
Integration with Amazon Lex, used for building conversational interfaces.  
Link: [Lex](https://docs.cognigy.com/ai/platform-features/nlu/external/nlu-connector-reference/lex)

### **Luis**  
Integration with Microsoft LUIS for Intent recognition.  
Link: [Luis](https://docs.cognigy.com/ai/platform-features/nlu/external/nlu-connector-reference/luis)

### **Watson Assistant**  
Integration with IBM Watson Assistant for advanced AI-driven conversations.  
Link: [Watson Assistant](https://docs.cognigy.com/ai/platform-features/nlu/external/nlu-connector-reference/watson-assistant)

### **Code**  
Allows custom integration with any third-party NLU provider.  
Link: [Code](https://docs.cognigy.com/ai/platform-features/nlu/external/nlu-connector-reference/code)

### **No NLU**  
Option for users who don’t require NLU processing.  
Link: [No NLU](https://docs.cognigy.com/ai/platform-features/nlu/external/nlu-connector-reference/no-nlu)

Last modified on April 21, 2026