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Microsoft Bot Framework

Free

Comprehensive SDK and services for building intelligent conversational bots.

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4.6 Editor Rating
Vetted Score
4.6 / 5.0

Earns a high score for extensive channel support, robust SDKs, and deep Azure AI integration, though hosting costs can rise with scale.

Key Features
Multi‑Channel Connectivity

Deploy bots across a wide range of channels including Teams, Slack, Facebook Messenger, and custom web chat.

Rich SDKs and Tools

Supports .NET, Node.js, Python, and Java SDKs, plus Composer visual authoring for rapid bot creation.

AI Integration

Seamlessly integrate with Azure Cognitive Services for language understanding, speech, and vision capabilities.

Frequently Asked Questions

Yes, the SDKs and development tools are free; you only pay for Azure services you consume when hosting or using premium channels.

The framework provides official SDKs for .NET, Node.js, Python, and Java, allowing developers to choose their preferred language.

Absolutely—tools like Bot Framework Emulator let you run and debug bots locally without any Azure charges.
Specifications
Pricing Model Free SDK and development tools; Azure Bot Service usage is billed per message and channel, with a free tier and paid consumption rates.
Supported Platforms
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