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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
Bun is a comprehensive toolkit for JavaScript, TypeScript, and JSX that functions as a single executable, merging a high-performance runtime, package manager, test runner, and bundler into a seamless alternative to Node.js, offering extensive compatibility and significantly lower startup times and memory consumption. Developed in Zig and utilizing Apple’s JavaScriptCore, Bun runs JavaScript and TypeScript files, scripts, and packages with performance levels that surpass those of conventional tools, while inherently supporting zero-config setups for TypeScript, JSX, and React. Its integrated package manager dramatically speeds up dependency installations, achieving up to 30 times faster than npm, and features capabilities such as workspaces, global caching, migration assistance, and dependency auditing. Additionally, Bun’s test runner, which is compatible with Jest, includes built-in coverage and supports concurrent test execution, while the bundler can handle TypeScript, JSX, CSS, and more without requiring any configuration, thus allowing for the creation of single-file executables effortlessly. The versatility of Bun makes it an appealing choice for developers seeking efficiency and simplicity in their workflows.
API Access
Has API
API Access
Has API
Integrations
React
CSS
JavaScript
MySQL
Node.js
PostgreSQL
SQL
SQLite
Tailwind CSS
TypeScript
Integrations
React
CSS
JavaScript
MySQL
Node.js
PostgreSQL
SQL
SQLite
Tailwind CSS
TypeScript
Pricing Details
Free
Free Trial
Free Version
Pricing Details
No price information available.
Free Trial
Free Version
Deployment
Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook
Deployment
Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook
Customer Support
Business Hours
Live Rep (24/7)
Online Support
Customer Support
Business Hours
Live Rep (24/7)
Online Support
Types of Training
Training Docs
Webinars
Live Training (Online)
In Person
Types of Training
Training Docs
Webinars
Live Training (Online)
In Person
Vendor Details
Company Name
21st.dev
Website
21st.dev/
Vendor Details
Company Name
Bun
Founded
2022
Country
United States
Website
bun.com