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★ 21klast 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 18d 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 2d 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 1mo ago
kokonutui
On 21st54kokonutui.com
Collection of stunning components built with Tailwind CSS, shadcn/ui and Motion to use on your websites.
75 components★ 2.2klast commit today
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★ 839last commit 21d 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 3d ago
agentcn.vercel.app
Production-ready agents, made simple. Ready to use, customizable AI agent recipes. Built on Eve and Flue.
76 components★ 492last commit 9d ago
ui.usenotra.com
Components and blocks for building modern dashboards, straight from the design system behind Notra.
82 components★ 270last commit yesterday
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 today
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★ 7last commit 2d ago
easeui.dev
Open-source React components with natural motion, installable as source.
33 components★ 5last commit 13d 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 15d 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★ 4last commit 4d 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★ 2last commit yesterday
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 ago
pastaui
On 21st51pastaui.com
Open-source React components for AI agent interfaces: conversations, tool calls, approvals, background runs, and rich outputs.
52 components★ 1last commit yesterday
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 7d 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 3d 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
