UI Components, Libraries & Agent Skills

For your agent

MCP

Freemium

Context7

Library documentation retrieval for coding assistants.

Multiple

For your agent

Free

json-render

Generate UI from prompts inside a constrained component catalog.

ReactReact Native

For your agent

Free

OpenUI

An open standard for agents that stream real UI.

Multiple

For your agent

MCP

Freemium

21st.dev

A marketplace of React components with editor MCP access.

ReactTailwind CSS

For your agent

Skill

Free

Baseline UI

A focused cleanup pass for spacing, typography, and interface consistency.

Claude CodeCodex

For your agent

Skill

Free

Fixing Accessibility

Review controls, forms, and dialogs for concrete accessibility issues.

Claude CodeCodex

For your agent

Skill

Free

Fixing Motion Performance

Find expensive animation patterns without replacing your animation stack.

Claude CodeCodex

For your agent

Skill

Free

Frontend Design

Give an agent a deliberate visual direction for a new interface.

Claude CodeCodex

For your agent

MCP

Freemium

Kage

Real product screens turned into agent-ready UI prompts.

Web

For your agent

Skill

Free

React Best Practices

React and Next.js performance guidance maintained by Vercel.

Claude CodeCodex

For your agent

Skill

Free

React Composition Patterns

Make reusable React components easier to extend and understand.

Claude CodeCodex

For your agent

Skill

Free

Vercel Agent Skills

Reusable agent instructions for frontend engineering tasks.

ReactNext.js

For your agent

Skill

Free

Web Design Guidelines

Review interface code against Vercel's current web guidelines.

Claude CodeCodex

For your agent13