Microsoft Bot Builder V3 SDK for Microsoft Bot Framework
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Add Sentiment analysis to LuisResult for dotnet sdk.
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Bot Builder SDK

If you are new to the Bot Builder SDK, we strongly encourage you to build your bot using the v4 SDK.

This repo contains version 3.

The Bot Builder SDK enables you to build bots that support different types of interactions with users. You can design conversations in your bot to be freeform. Your bot can also have more guided interactions where it provides the user choices or actions. The conversation can use simple text or more complex rich cards that contain text, images, and action buttons. You can add natural language interactions and questions and answers, which let your users interact with your bots in a natural way.

Bot Framework

The Bot Builder includes a set of command line tools to streamline end-to-end conversation centric development experience, and an emulator for debugging your bot locally or in the cloud.

You can create a bot with Bot Builder v3 SDK using your favorite language:


Visit for the primary Azure Bot Service documentation page to learn about building bots using Bot Builder. There is additional documentation on the SDK, oriented towards contributors. The v3 SDK currently supports two programing language:


Bot builder SDK v3 includes samples for all supported languages:

Questions and Help

If you have questions about Bot Builder SDK v3 or using Azure Bot Service, we encourage you to reach out to the community and Azure Bot Service dev team for help.

While we do our best to help out on a timely basis, we don't have any promise around the above resources. If you need an SLA on support from us, it's recommended you invest in an Azure Support plan.

Issues and feature requests

We track functional issues and features asks for and Bot Builder and Azure Bot Service in a variety of locations. If you have found an issue or have a feature request, please submit an issue to the below repositories.

Item Description Link
SDK v3 (.NET and JS) core bot runtime, abstractions, prompts, dialogs, FormFlow, etc. File an issue
Documentation Docs for Bot Builder and Azure Bot Service File an issue
CLI tools MSBot, chatdown, ludown, LUIS, LUISGen, QnA Maker, dispatch File an issue
Emulator view transcripts, connect to services, debug your bot File an issue

Helpful links

GitHub repositories


Adding intelligence to your bot

Your bot can provide a great conversational experience without using any Azure Cognitive Services. You can increase your customers' delight with adding a more natural interaction using one or multiple Azure Cognitive Services. The following are common services integrated to bots:

Get started quickly with our samples:

Join the conversation on Gitter.

See all the support options here.

This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact with any additional questions or comments.