21st21st.dev
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Related Products
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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.
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About
Gummble is a UI design reference library with more than 300,000 real app screenshots, 21,000+ user flows, and design patterns from 1,500+ shipped iOS, Android, and web products. Designers, UX researchers, developers, and product teams can search by pattern, such as onboarding, paywalls, empty states, and settings; by UI copy; or by complete flows. Each screen includes design analysis, and users can save references to collections. Its MCP server lets compatible AI assistants and coding tools, including Claude, Cursor, and Codex, search the library to ground interface design and implementation in real product examples. The free plan offers limited browsing; Browse adds unlimited screens, flows, downloads, collections, and MCP access, while Pro adds Figma export.
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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
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Audience
Software developers, startups, and product teams that want a fast and scalable way to build and deploy AI agents inside their applications
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Audience
Product designers, UX researchers, front-end developers and product teams looking for real-world UI references.
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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API
Offers API
Not Supported
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API
Offers API
Supported
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Screenshots and Videos |
Screenshots and VideosNo images available
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Pricing
Free
Free Version
Supported
Free Trial
Not Supported
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Pricing
$9.99/month
A Free plan provides limited browsing. Browse is $9.99/month and includes unlimited screens, flows, downloads, collections, and MCP access. Pro is $14.99/month and adds Figma export.
Free Version
Supported
Free Trial
Not Supported
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Reviews/
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Reviews/
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company Information21st.dev
21st.dev/
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Company InformationGummble
Founded: 2026
Vietnam
gummble.com
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Alternatives |
Alternatives |
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Categories |
Categories |
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Integrations
Claude
Not Supported
Codex CLI
Not Supported
Cursor
Not Supported
Figma
Not Supported
Grok Bot
Supported
Model Context Protocol (MCP)
Not Supported
React
Supported
Tailwind CSS
Supported
shadcn/ui
Supported
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Integrations
Claude
Supported
Codex CLI
Supported
Cursor
Supported
Figma
Supported
Grok Bot
Not Supported
Model Context Protocol (MCP)
Supported
React
Not Supported
Tailwind CSS
Not Supported
shadcn/ui
Not Supported
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