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What is Gummble?

Gummble functions as an extensive reference library for UI design, featuring over 300,000 genuine app screenshots, upwards of 21,000 user flows, and a diverse array of design patterns drawn from more than 1,500 developed iOS, Android, and web applications. It serves as an essential asset for designers, UX researchers, developers, and product teams, providing the ability to search for specific patterns such as onboarding sequences, paywalls, empty states, and settings, alongside UI text or complete user flows. Each displayed screen is accompanied by a thorough design analysis, allowing users to curate their references into well-organized collections. Furthermore, its MCP server enhances interactions with compatible AI assistants and coding tools like Claude, Cursor, and Codex, empowering these tools to leverage the library for anchoring interface design and execution in practical contexts. Although the free plan offers restricted browsing options, the Browse plan grants unlimited access to screens, flows, downloads, collections, and MCP features, while the Pro plan additionally includes Figma export capabilities to improve workflow efficiency. This multifaceted strategy not only enhances the user experience but also positions Gummble as an essential resource for all professionals engaged in UI design, making it a critical component of the design process.

What is 21st?

21st is a developer-focused platform designed to simplify the creation and deployment of AI agents within modern software applications. The platform provides an SDK that allows developers to define agents using simple code while integrating tools, prompts, and AI models. It supports multiple development environments and frameworks including Next.js, React, TypeScript, Python, Node.js, and other common programming stacks. Developers can configure agents to run on advanced runtimes such as Claude Code or Codex, enabling tool usage, file access, and intelligent task execution. Once the agent configuration is defined, deployment can be completed using a single command that automatically sets up infrastructure. The platform manages backend systems such as sandboxed execution environments, authentication, rate limits, and streaming responses. It also includes a drop-in chat interface component that developers can embed directly into their applications to enable user interaction with agents. Real-time token streaming allows users to see responses generated progressively, creating a more interactive experience. The platform provides built-in observability tools that allow developers to monitor conversations, replay sessions, and trace agent actions. These features make debugging and optimization much easier during development and production. 21st also includes usage controls such as per-user spending limits, quotas, and metering to help manage AI costs. By combining powerful developer tools with managed infrastructure and deployment capabilities, 21st makes it easier for teams to build and scale AI-powered agents within their products.

Media

No images available

Media

Integrations Supported

Claude
Codex CLI
Cursor
Figma
Model Context Protocol (MCP)

Integrations Supported

React
Tailwind CSS
shadcn/ui

API Availability

Has API

API Availability

Pricing Information

$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

Pricing Information

Free
Free Version

Supported Platforms

SaaS
iPhone

Supported Platforms

SaaS

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Gummble

Date Founded

2026

Company Location

Vietnam

Company Website

gummble.com

Company Facts

Organization Name

21st.dev

Company Website

21st.dev/

Categories and Features

UI Design

Not specified

Categories and Features

AI SDKs

Not specified

UI Design

Not specified

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