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
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

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
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version
Free Trial

Pricing

$49/month
Free Version
Free Trial

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
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

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

Categories

Integrations

React
Claude Sonnet 3.5
Claude Sonnet 3.7
Cursor
GPT Pilot
GPT-4o
JavaScript
Jest
Node.js
Python
SQLite
Tailwind CSS
TypeScript
Visual Studio Code
shadcn/ui

Integrations

React
Claude Sonnet 3.5
Claude Sonnet 3.7
Cursor
GPT Pilot
GPT-4o
JavaScript
Jest
Node.js
Python
SQLite
Tailwind CSS
TypeScript
Visual Studio Code
shadcn/ui
Claim 21st and update features and information
Claim 21st and update features and information
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