# Page Not Found

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- [xApp Overlay](https://docs.cognigy.com/xApps/build/overlay)  
- [xApp: Show HTML](https://docs.cognigy.com/ai/agents/develop/node-reference/xApp/set-html-xApp-state#xapp-overlay)  
- [xApp: Show Adaptive Card](https://docs.cognigy.com/ai/agents/develop/node-reference/xApp/set-AdaptiveCard-xApp-state#xapp-overlay)