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

Saas UI is a purpose-built toolkit designed to expedite the development of high-quality applications by providing a comprehensive suite of React components and starter kits. It offers over 40 open-source components, including authentication screens compatible with services like Clerk, Supabase, and Magic, fully functional forms utilizing React Hook Form, and data tables powered by React Table. Built atop industry-leading libraries such as Chakra UI, React Query, and Recharts, Saas UI ensures accessibility by adhering strictly to WAI-ARIA standards and supports full customization through theming and style props. The platform includes a Figma design system, aligning design and development processes seamlessly. Saas UI Pro extends these capabilities with advanced components and tools for billing, onboarding, feature management, and sign-up flows, accompanied by a boilerplate app compatible with Next.js and Electron.

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

Enterprises looking for a solution to build intuitive apps to engage their customers

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

€197 one-time payment
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

SaaS UI
Founded: 2021
Netherlands
saas-ui.dev/

Alternatives

Alternatives

Categories

Categories

Integrations

React
shadcn/ui
Chakra UI
Clerk
Electron
Figma
Flagsmith
Next.js
Supabase
Tailwind CSS

Integrations

React
shadcn/ui
Chakra UI
Clerk
Electron
Figma
Flagsmith
Next.js
Supabase
Tailwind CSS
Claim 21st and update features and information
Claim 21st and update features and information
Claim SaaS UI and update features and information
Claim SaaS UI and update features and information