AG-UI: the Agent-User Interaction Protocol. Bring Agents into Frontend Applications.

Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95% fewer tokens for JSON, same answers. Library, proxy, MCP server.

The open source coding agent.

A complete AI agency at your fingertips - From frontend wizards to Reddit community ninjas, from whimsy injectors to reality checkers. Each agent is a specialized expert with personality, processes…

The best ChatGPT that $100 can buy.

Spec-driven development (SDD) for AI coding assistants.

Google Workspace CLI — one command-line tool for Drive, Gmail, Calendar, Sheets, Docs, Chat, Admin, and more. Dynamically built from Google Discovery Service. Includes AI agent skills.

100+ AI Agents, Agent Skills and RAG Apps - Free and Open Source.

A curated list of awesome Claude Skills, resources, and tools for customizing Claude AI workflows

Specification and documentation for the Universal Commerce Protocol (UCP)

21 Lessons, Get Started Building with Generative AI

🪢 Open source AI engineering platform: LLM evals, observability, metrics, prompt management, playground, datasets. Integrates with OpenTelemetry, LangChain, OpenAI SDK, LiteLLM, and more. 🍊YC W23

Error handling library with readable stack traces and flexible formatting support 🎆

Run your GitHub Actions locally 🚀

D2 is a modern diagram scripting language that turns text to diagrams.

Chrome extension that records your browser interactions and generates a Playwright or Puppeteer script.

a set of tools for measuring and debugging performance of frontend applications

Web performance library for measuring all performance vitals metrics

The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.

React components that allow you to divide a page or container into nestable anchored, scrollable and resizable spaces.

An enterprise-class UI design language and React UI library

An efficient, small mobile key-value storage framework developed by WeChat. Works on Android, iOS, macOS, Windows, POSIX, and OHOS.

Former GUI client for gRPC services. No longer maintained.

Efficient Mock Generator for Swift

🚀 A coroutine framework that focuses on hyperspeed and flexibility. Building microservice or middleware with ease.

The ZAP by Checkmarx Core project

Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

Transform SVGs into React components 🦁

Create the next immutable state by mutating the current one

🚀 PHP Microservice Full Coroutine Framework