Best AI GitHub Repos

Build, run, and manage agent platforms.

A visual, example-driven guide to Claude Code — from basic concepts to advanced agents, with copy-paste templates that bring immediate value.

Build resilient agents.

Open-source foundation of ToolJet AI - the enterprise app generation platform for internal tools, dashboards, business applications, workflows and AI agents. Build visually, from a prompt, or from Claude Code, Codex and Cursor over MCP 🚀

:hedgehog: PostHog is the leading platform for building self-driving products. Our developer tools – AI observability, analytics, session replay, flags, experiments, error tracking, logs, and more – capture all the context agents need to diagnose problems, uncover opportunities, and ship fixes. Steer it all from Slack, web, desktop, or the MCP.

Multi-harness agentic plugin marketplace for Claude Code, Codex, Cursor, OpenCode, GitHub Copilot, and Google Antigravity

[EMNLP2025] LightRAG: Simple and Fast Retrieval-Augmented Generation

Anthropic's Interactive Prompt Engineering Tutorial

The Frontend Stack for Agents & Generative UI. React, Angular, Mobile, Slack, and more. Makers of the AG-UI Protocol

Your AI second brain. Self-hostable. Get answers from the web or your docs. Build custom agents, schedule automations, do deep research. Turn any online or local LLM into your personal, autonomous AI (gpt, claude, gemini, llama, qwen, mistral). Get started - free.

A modular graph-based Retrieval-Augmented Generation (RAG) system

open-source coding agent

The Open-Source Multimodal AI Agent Stack: Connecting Leading AI Models and Agent Infra

Reference agents, skills, and data connectors for FSI workflows (investment banking, equity research, PE, wealth management). Claude Cowork plugins + Claude Managed Agents.

🤗 Diffusers: State-of-the-art diffusion models for image, video, and audio generation in PyTorch.

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

CLIP (Contrastive Language-Image Pretraining), Predict the most relevant text snippet given an image

Playwright MCP server

Use Codex from Claude Code to review code or delegate tasks.

GitHub's official MCP Server

Open Source AI Platform - AI Chat with advanced features that works with every LLM

The official Python library for the OpenAI API

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.