livekit.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.
137 components★ 12klast 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 6mo agoai-elements
On 21st10ai-sdk.dev
Pre-built components like conversations, messages and more to help you build AI-native applications faster.
48 components★ 2.4klast commit 23d ago
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★ 777last commit 2mo agosimple-ai.dev
On 21st4simple-ai.dev
A collection of beautifully designed AI interface components that you can copy and paste into your apps. Accessible. Customizable. Open Source.
35 components★ 758last commit 8mo ago
agentcn.vercel.app
Production-ready agents, made simple. Ready to use, customizable AI agent recipes. Built on Eve and Flue.
76 components★ 460last commit yesterday
nexus-ui
On 21st2nexus-ui.dev
Open-source component library of composable, copy-paste primitives for building AI interfaces (chat, streaming, multimodal)
15 components★ 133last commit 2mo ago
agent-elements.21st.dev
On 21st22agent-elements.21st.dev
25 components★ 101last commit 4mo 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★ 35last commit 1mo 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.
29 components★ 30last commit yesterday
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★ 24last commit 1mo agopacekit-gsap
On 21st7gsap.pacekit.dev
Official feedback, bug reports, and feature requests for paceui.com
28 components★ 12last commit 1mo 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★ 9last commit 1mo 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★ 3last commit 15d 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 1mo ago
ui.pipecat.ai
Components, hooks, visualizers, and composable blocks for Pipecat and voice AI.
17 components★ 1last commit 8d agoagentui.pro
Open-source React components for AI agent conversations, reasoning, tools, approvals, and streamed responses.
19 componentsasanshay
On 21st5ds.asanshay.com
Clean, beautiful, and simple UI primitives and AI elements.
21 componentskobra.systems
Polished components for teams building exceptional products and experiences.
29 componentsinferencesh
On 21st4ui.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
