Average Ratings 0 Ratings

Total
ease
features
design
support

No User Reviews. Be the first to provide a review:

Write a Review

Average Ratings 0 Ratings

Total
ease
features
design
support

No User Reviews. Be the first to provide a review:

Write a Review

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

StackBlitz has developed WebContainers, a browser-based runtime that allows Node.js applications and operating system commands to run directly within a web browser tab. This innovative technology empowers developers to create immediate and engaging coding experiences, ranging from tutorials to comprehensive integrated development environments, all without requiring local installations or cloud-based virtual machines. Operating entirely on the client side, WebContainers provide exceptional user experiences characterized by zero latency, offline functionality, and increased security, as they remove the risks associated with executing code on servers. They support native Node.js toolchains, such as npm, pnpm, and yarn, and are compatible with leading modern frameworks. Furthermore, WebContainers offer seamless support for running WebAssembly (Wasm) right out of the box, enabling the adaptation of various programming languages and frameworks to operate within the browser environment. With these capabilities, developers can leverage the full potential of web technologies while maintaining flexibility and performance.

API Access

Has API No 

API Access

Has API Yes 

Screenshots View All

Screenshots View All

Integrations

Bolt.new No 
Brave Browser No 
Chromium No 
Figma No 
Git No 
GitHub No 
Google Chrome No 
Microsoft Edge No 
Mozilla Firefox No 
Node.js No 
React Yes 
Safari No 
Storybook No 
Tailwind CSS Yes 
WebAssembly No 
shadcn/ui Yes 

Integrations

Bolt.new Yes 
Brave Browser Yes 
Chromium Yes 
Figma Yes 
Git Yes 
GitHub Yes 
Google Chrome Yes 
Microsoft Edge Yes 
Mozilla Firefox Yes 
Node.js Yes 
React No 
Safari Yes 
Storybook Yes 
Tailwind CSS No 
WebAssembly Yes 
shadcn/ui No 

Pricing Details

Free
Free Trial No 
Free Version Yes 

Pricing Details

$18 per month
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 No 
Live Rep (24/7) No 
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 No 
Live Training (Online) Yes 
In Person No 

Vendor Details

Company Name

21st.dev

Website

21st.dev/

Vendor Details

Company Name

WebContainers

Website

webcontainers.io

Product Features

Product Features

Container Management

Access Control No 
Application Development No 
Automatic Scaling No 
Build Automation No 
Container Health Management No 
Container Storage No 
Deployment Automation No 
File Isolation No 
Hybrid Deployments No 
Network Isolation No 
Orchestration No 
Shared File Systems No 
Version Control No 
Virtualization No 

IDE

Code Completion No 
Compiler No 
Cross Platform Support No 
Debugger No 
Drag and Drop UI No 
Integrations and Plugins No 
Multi Language Support No 
Project Management No 
Text Editor / Code Editor No 

Alternatives

Alternatives