Average Ratings 0 Ratings
Average Ratings 0 Ratings
Description
21st is a development platform designed to help engineers quickly build and deploy AI agents inside their applications. The platform provides a specialized SDK that simplifies the process of defining agent behavior, integrating tools, and connecting AI models. Developers can create agents using familiar technologies such as Next.js, React, TypeScript, Python, and Node.js, making integration straightforward for modern applications. Once an agent is defined, the platform allows it to be deployed with a single command while automatically handling infrastructure requirements. 21st provides sandboxed execution environments through E2B sessions, ensuring that agent operations run securely and independently. The platform includes a ready-to-use chat interface component that can be embedded directly into an app for user interaction. Additional features include token streaming, conversation history, tool execution, and built-in observability for debugging and monitoring. Developers can replay sessions and trace tool calls to better understand how agents behave during execution. The system also supports spend limits, authentication controls, and rate limiting to manage AI usage across users. By combining development tools with managed infrastructure, 21st helps teams launch scalable AI agents without building complex backend systems.
Description
Semantic Kernel is an open-source development toolkit that facilitates the creation of AI agents and the integration of cutting-edge AI models into applications written in C#, Python, or Java. This efficient middleware accelerates the deployment of robust enterprise solutions. Companies like Microsoft and other Fortune 500 firms are taking advantage of Semantic Kernel's flexibility, modularity, and observability. With built-in security features such as telemetry support, hooks, and filters, developers can confidently provide responsible AI solutions at scale. The support for versions 1.0 and above across C#, Python, and Java ensures reliability and a commitment to maintaining non-breaking changes. Existing chat-based APIs can be effortlessly enhanced to include additional modalities such as voice and video, making the toolkit highly adaptable. Semantic Kernel is crafted to be future-proof, ensuring seamless integration with the latest AI models as technology evolves, thus maintaining its relevance in the rapidly changing landscape of artificial intelligence. This forward-thinking design empowers developers to innovate without fear of obsolescence.
API Access
Has API
No
API Access
Has API
Yes
Integrations
Azure App Service
No
C#
No
DeepSeek R1
No
Dock
No
Java
No
Microsoft 365 Copilot
No
Openlayer
No
Prefactor
No
Python
No
React
Yes
Integrations
Azure App Service
Yes
C#
Yes
DeepSeek R1
Yes
Dock
Yes
Java
Yes
Microsoft 365 Copilot
Yes
Openlayer
Yes
Prefactor
Yes
Python
Yes
React
No
Pricing Details
Free
Free Trial
No
Free Version
Yes
Pricing Details
Free
Free Trial
No
Free Version
Yes
Deployment
Web-Based
Yes
On-Premises
No
iPhone App
No
iPad App
No
Android App
No
Windows
No
Mac
No
Linux
No
Chromebook
No
Deployment
Web-Based
Yes
On-Premises
No
iPhone App
No
iPad App
No
Android App
No
Windows
No
Mac
No
Linux
No
Chromebook
No
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Customer Support
Business Hours
Yes
Live Rep (24/7)
Yes
Online Support
Yes
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
No
In Person
No
Types of Training
Training Docs
Yes
Webinars
Yes
Live Training (Online)
No
In Person
Yes
Vendor Details
Company Name
21st.dev
Website
21st.dev/
Vendor Details
Company Name
Microsoft
Founded
1975
Country
United States
Website
learn.microsoft.com/en-us/semantic-kernel/overview/