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Average Ratings 0 Ratings

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ease
features
design
support

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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

T3 Code serves as a streamlined web GUI tailored for coding agents like Codex, aiming to provide these agents with a more efficient work environment compared to traditional terminal setups. This tool is available for free, is open source, and is designed for quick installation, allowing users to connect it with existing harnesses they already utilize. Featuring a sleek, contemporary interface, T3 Code facilitates interaction with AI coding assistants via both web and desktop platforms, offering features such as session management, persistent state retention, thread oversight, and real-time collaboration capabilities. Developers can engage with coding agents through an easy-to-use chat interface, manage coding sessions across multiple projects, monitor changes thanks to integrated git support and checkpointing, and regulate access through distinct runtime modes like Full Access and Supervised. Moreover, T3 Code is built with flexibility in mind, allowing for modifications and customizations under an MIT license, which supports commercial use, and it utilizes TypeScript with robust end-to-end typing, all organized within a monorepo that encompasses desktop, web, server, and harness components, enhancing its versatility and utility for developers. This commitment to adaptability and user-friendliness makes T3 Code an appealing choice for developers seeking to improve their coding workflows.

API Access

Has API

API Access

Has API

Screenshots View All

Screenshots View All

Integrations

Claude Code
Cursor
OpenAI Codex
OpenCode
React
Tailwind CSS
TypeScript
shadcn/ui

Integrations

Claude Code
Cursor
OpenAI Codex
OpenCode
React
Tailwind CSS
TypeScript
shadcn/ui

Pricing Details

Free
Free Trial
Free Version

Pricing Details

Free
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

Ping.gg

Country

United States

Website

t3.codes/

Product Features

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