assistant-ui

21st.dev is the largest React component registry for AI applications, used by 2M developers (370K MAU). We provide the building blocks to create AI agents and agent-powered apps: UI components, agent templates, and an SDK with built-in UI, tools, memory, observability, and managed infrastructure.

shared extracted concepts: react; shared product terms: react, used, developer, apps; shared product theme: developer infrastructure; same category: AI agents; shared affiliation: Y Combinator

Manufact is the MCP cloud platform to get your product ready for Claude Connectors marketplace, ChatGPT App Store and any AI agent that supports MCP. We're the team behind mcp-use SDK, the open-source framework for building MCP Apps with 10k github stars and 8M+ downloads across python and typescript. It's the fastest and most complete solution for production-ready MCP servers.

shared product terms: apps, re, typescript, framework; shared product theme: developer infrastructure, open source and local first; same category: AI agents; shared affiliation: Y Combinator

Meet Meteor: a Chrome-alternative that can actually do your work for you. With agents getting better by the day (literally), we realize that it’s time to automate the boring, tedious work. We use your browser session to empower agents to act like your personal assistants (ex. book a calendar, find cheaper flights, buy clothes on amazon etc.) Some of Meteor’s features: - Chat with any page - Integrate with popular apps like Gmail, Google Calendar, Twitter etc. - Browser agent to autonomously navi

shared product terms: assistant, chat, apps, like; same category: AI agents; shared affiliation: Y Combinator

OpenSpec is an open-source, spec-driven framework. We help developers plan complex features by creating lightweight spec documents that serve as durable context for their coding agents. With 20k+ GitHub stars, we’re one of the leading spec-driven frameworks, used by thousands of developers and teams to plan and ship with the coding agent of their choice. Our philosophy is simple: keep planning lightweight and iterative, and match how software actually gets built, messy, evolving, and real, witho

shared product terms: developer, used, re, framework; shared product theme: developer infrastructure, open source and local first; same category: AI agents; shared affiliation: Y Combinator

Fullstack Academy's JavaScript-driven curriculum immerses you in the latest web technologies including Node.js, React and MongoDB. You bring the energy, curiosity and dedication — we'll provide a world-class environment for becoming an expert software developer.

shared extracted concepts: react; shared product terms: developer, react, clas; shared product theme: developer infrastructure; shared affiliation: Y Combinator

Epicenter is an ecosystem of open-source, local-first apps that share a memory. We store all your work—notes, transcripts, chat histories—in a single folder of plain text and SQLite. Every tool we build shares this memory: your text editor, personal assistant, etc.. It's open, tweakable, and yours. Grep it, open it in Obsidian, host it wherever you like. The choice is yours. Our vision is to build a personal workspace where you own your data, choose your own AI models, and replace siloed apps wi

shared product terms: apps, chat, assistant, like; shared product theme: open source and local first; same category: AI agents; shared affiliation: Y Combinator