21st

21st

21st.dev
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About

21st is a developer platform that provides the fastest way to add AI agents directly into applications. The platform offers an SDK that allows developers to define, deploy, and run AI agents with minimal infrastructure setup. Developers can integrate agents using popular frameworks such as Next.js, React, TypeScript, Python, and Node.js. 21st includes built-in features like chat interfaces, session history, tool execution, memory, and real-time streaming responses. The platform also manages backend components such as sandboxed execution environments, authentication, rate limits, and observability. With support for Claude Code and Codex runtimes, developers can build agents that interact with tools, files, and APIs securely. By handling infrastructure and deployment automatically, 21st enables teams to launch production-ready AI agents quickly.

About

Pythagora is an AI-powered platform designed to help developers build full-stack web applications with minimal coding effort. It integrates a suite of AI agents that collaborate to write code, review it, build tests, debug, and deploy apps. By automating many tasks involved in the software development lifecycle, Pythagora enables developers to work more efficiently and accelerate the development process. The platform supports frontend development in React and backend in Node.js, with Python support coming soon. With its ability to handle multiple aspects of development, Pythagora is ideal for quickly building both MVPs and production-ready applications. It simplifies the creation of scalable and maintainable applications, making it suitable for both small startups and large enterprises.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Software developers, startups, and product teams that want a fast and scalable way to build and deploy AI agents inside their applications

Audience

Developers seeking a tool to build production-ready web applications through conversational interactions and no manual code

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version Supported
Free Trial Not Supported

Pricing

$49/month
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Company Information

21st.dev
21st.dev/

Company Information

Pythagora
Founded: 2023
United States
www.pythagora.ai/

Alternatives

Alternatives

Claude Code

Claude Code

Anthropic
Fine

Fine

Fine.dev
GPT Pilot

GPT Pilot

Pythagora

Categories

AI SDKs Supported
UI Design Supported

Categories

Agentic AI Supported
AI App Generators Supported
AI Code Generators Supported
AI Code Review Supported
AI Coding Agents Supported

Integrations

React Supported
Claude Sonnet 3.5 Not Supported
Claude Sonnet 3.7 Not Supported
Cursor Not Supported
GPT Pilot Not Supported
GPT-4o Not Supported
Grok Bot Supported
JavaScript Not Supported
Jest Not Supported
Node.js Not Supported
Python Not Supported
SQLite Not Supported
Tailwind CSS Supported
TypeScript Not Supported
Visual Studio Code Not Supported
shadcn/ui Supported

Integrations

React Supported
Claude Sonnet 3.5 Supported
Claude Sonnet 3.7 Supported
Cursor Supported
GPT Pilot Supported
GPT-4o Supported
Grok Bot Not Supported
JavaScript Supported
Jest Supported
Node.js Supported
Python Supported
SQLite Supported
Tailwind CSS Not Supported
TypeScript Supported
Visual Studio Code Supported
shadcn/ui Not Supported
Claim 21st and update features and information
Claim 21st and update features and information
Claim Pythagora and update features and information
Claim Pythagora and update features and information