agents-ui
On 21st1livekit.com
This is a shadcn/ui component registry that distributes copy-paste React components for building LiveKit AI Agent interfaces.
16 components★ 22klast commit yesterday
Libraries
AI block registries
assistant-ui.com
Radix-style React primitives for AI chat with adapters for AI SDK, LangGraph, Mastra, and custom backends.
157 components★ 13klast commit today
prompt-kit
On 21st9prompt-kit.com
Core building blocks for AI apps. High-quality, accessible, and customizable components for AI interfaces.
21 components★ 3.1klast commit 22d agoai-elements
On 21st10ai-sdk.dev
Pre-built components like conversations, messages and more to help you build AI-native applications faster.
49 components★ 2.5klast commit 6d agoelevenlabs-ui
On 21st8ui.elevenlabs.io
A collection of Open Source agent and audio components that you can customize and extend.
28 components★ 2.4klast commit 4d ago
kokonutui
On 21st60kokonutui.com
Collection of stunning components built with Tailwind CSS, shadcn/ui and Motion to use on your websites.
75 components★ 2.2klast commit yesterday
brainless.swerdlow.dev
Claude Code, Codex, and Grok interfaces as shadcn components — accessible React terminal-agent UI for docs, demos, and product surfaces.
39 components★ 840last commit 25d agosimple-ai
On 21st8simple-ai.dev
Curated agent examples you can copy into your app. Chat page, input, tools, and a worked fold.
39 components★ 755last commit 7d ago
agentcn.vercel.app
Production-ready agents, made simple. Ready to use, customizable AI agent recipes. Built on Eve and Flue.
76 components★ 493last commit 13d ago
ui.usenotra.com
Components and blocks for building modern dashboards, straight from the design system behind Notra.
84 components★ 270last commit 5d ago
nexus-ui
On 21st3nexus-ui.dev
Open-source component library of composable, copy-paste primitives for building AI interfaces (chat, streaming, multimodal)
15 components★ 132last commit 4mo ago
agent-elements.21st.dev
On 21st22agent-elements.21st.dev
25 components★ 104last commit 5mo ago
localmode.ai
Local-first, offline AI UI primitives + blocks - run ML models (chat, RAG, vision, audio) entirely in the browser. No servers, no API keys.
143 components★ 64last commit 3d ago
ui.meta-cloud-api.site
Production-ready WhatsApp Web UI components built on WDS design tokens with Tailwind CSS v4 and @base-ui/react.
34 components★ 35last commit 2d ago
sitesearch.algolia.com
Enterprises and developers use Algolia's AI search infrastructure to understand users and show them what they're looking for.
5 components★ 25last commit 2mo agopacekit-gsap
On 21st8gsap.pacekit.dev
Official feedback, bug reports, and feature requests for paceui.com
28 components★ 15last commit 2mo ago
agentblog.dev
A complete blog for Next.js, installed like a component. Built to be read and cited by AI search engines.
10 components★ 10last commit 2mo ago
ui.pipecat.ai
Components, hooks, visualizers, and composable blocks for Pipecat and voice AI.
18 components★ 10last commit yesterday
easeui.dev
Open-source React components with natural motion, installable as source.
33 components★ 9last commit 18d ago
scrimui.dev
Free, open-source React components and patterns for AI interfaces, including prompts, streaming messages, reasoning, tool calls, citations, agents, memory, voice, and safety.
68 components★ 5last commit 9d ago
8848.aayurtshrestha.com.np
Minimal, precise Himalayan-inspired React components on Radix primitives and Tailwind CSS. Buttons, overlays, tables, forms and agentic patterns you can own.
9 components★ 4last commit 19d agoagent-ui-kit-demo.vercel.app
Accessible React components for agent runs: tool call timeline, human-in-the-loop approvals, per-hunk diff review and run telemetry, typed against AI SDK message parts.
13 components★ 3last commit 4d ago
seamui.dev
Own-your-code components rebuilt on Base UI with a motion.dev feel layer — springs, touch feedback, and depth — plus an agent-workbench tier (composer, voice, status, connectors) for AI-era interfaces.
39 components★ 2last commit 2mo agokatok-ui.jeongmin.dev
Unofficial KakaoTalk (카카오톡) chat UI for React: chat bubbles, chat list, message input, and Kakao AlimTalk (알림톡) / Brand Message previews with API-shaped props. Tailwind CSS v4, light and dark.
12 components★ 1last commit 9d ago
pastaui
On 21st52pastaui.com
Open-source React components for AI agent interfaces: conversations, tool calls, approvals, background runs, and rich outputs.
53 components★ 1last commit 4d ago
turnui.xyz
Minimal, accessible components for AI apps: chat, agents and tool use. Streaming-first, built on Base UI and Tailwind.
21 components★ 1last commit 11d ago
creance.pages.dev
React components for supervising AI agents: approvals, tool calls, run timelines, diff review and handoffs. 109 components, light and dark.
82 components★ 0last commit 6d ago
frame
On 21st29system.beibeidesign.com
React components for AI agent and conversational interfaces, including chat, messages, confirmations, and workflow states.
24 components★ 0last commit 7d agoagentui.pro
Open-source React components for AI agent conversations, reasoning, tools, approvals, and streamed responses.
21 componentsajibadedapo.github.io
Animated faces for AI agents that show thinking, working, needs you, done, listening and speaking, with voice lip sync.
1 componentsasanshay
On 21st7ds.asanshay.com
Clean, beautiful, and simple UI primitives and AI elements.
21 componentskobra.systems
Polished components for teams building exceptional products and experiences.
38 componentsquilldesignsystem.com
An editorial design system for digital products — warm neutral grounds, ink-toned type, five themes and four accents, 51 blocks, WCAG 2.1 AA, and agent-ready docs (llms.txt, usage guides, Claude Code rules).
72 componentsinferencesh
On 21st6ui.inference.sh
batteries-included agent components by inference.sh. chat interfaces with streaming, tool invocation rendering, syntax-highlighted code blocks, markdown renderer, and more.
14 components
