Introduction
The Claude and Anthropic ecosystem has grown rapidly. There are now dozens of official repositories, community tools, video tutorials, and learning resources scattered across the web. This article brings the best of them together in one place — a reference you can actually bookmark and return to.
Each resource below is included because it provides genuine value, not for completeness. The focus is on what developers and power users will actually reach for.
Official Anthropic Resources
- Claude Documentation — The primary reference for all Claude capabilities, from API basics to advanced features like extended thinking and computer use. Start here.
- Claude Code Docs — Everything about the Claude Code CLI: setup, CLAUDE.md configuration, keyboard shortcuts, MCP integration, and the full command reference.
- Anthropic API Reference — Complete API endpoint documentation with parameters, models, rate limits, and code samples in Python and TypeScript.
- Model Specification — Anthropic's public document describing how Claude thinks, what values it holds, and how it resolves conflicts between instructions and ethics. Essential reading for anyone building on Claude.
- Anthropic Research Papers — Original research including Constitutional AI, interpretability work, and scaling studies. The papers behind Claude's design.
- Anthropic GitHub Organization — All official open-source repositories from Anthropic, including SDKs, quickstarts, cookbooks, and experimental tools.
Top GitHub Repositories
These are the most useful repositories for building with Claude, sorted by practical utility:
- anthropics/anthropic-cookbook — The most starred Anthropic repo. Practical, runnable code examples for every major Claude use case: tool use, RAG, multi-agent workflows, embeddings, and more. The best starting point for implementation patterns.
- anthropics/anthropic-sdk-python — The official Python SDK. Well-maintained, type-annotated, with support for streaming, async, tool use, and all current API features.
- anthropics/anthropic-sdk-typescript — The official TypeScript/Node.js SDK. Full type safety, streaming support, and comprehensive error handling.
- anthropics/claude-code-action — The official GitHub Action for running Claude Code in CI. Automates PR reviews, bug fixes, and feature implementation in your GitHub workflow.
- modelcontextprotocol/typescript-sdk — The MCP TypeScript SDK for building Claude tool integrations. The canonical implementation for connecting Claude to external systems.
- anthropics/anthropic-quickstarts — Ready-to-deploy agent templates: computer use demo, customer support agent, and financial data analyst. Production-quality starting points.
- claudedoc/clauderules (this site) — The open-source codebase behind clauderules.net — community-curated CLAUDE.md rules, MCP server directory, skills, and agent listings.
YouTube Channels & Video Resources
Video tutorials and talks worth watching. Since specific video URLs change, use these search terms and channel links to find the most current content:
- Anthropic YouTube (@AnthropicAI) — Official channel with Claude feature demos, research presentations, product announcements, and "Building with Claude" webinars. Subscribe for first-party content.
- Search: "Claude Code tutorial 2025" — Multiple creators have published comprehensive Claude Code walkthroughs covering setup, CLAUDE.md configuration, and advanced workflows. Search YouTube for the most recent ones.
- Lex Fridman Podcast — Dario Amodei episodes — Deep, multi-hour conversations with Anthropic's CEO covering AI safety philosophy, Claude's design principles, and the long-term vision. Search "Lex Fridman Dario Amodei" on YouTube.
- "Building with Claude" webinar series — Anthropic's periodic developer-focused webinars on their YouTube channel. Covers tool use, agents, and new API features with live demos.
Community & Social
- Anthropic Discord — The official community server. Active channels for API questions, Claude Code help, MCP development, and general discussion. The fastest place to get unblocked.
- r/ClaudeAI (Reddit) — Community-driven discussions, tips, and use cases. Good for discovering unconventional workflows and real-world Claude experiences from a wide range of users.
- Hacker News — search "Claude" — Technical discussions about Claude releases and capabilities tend to surface valuable insights from engineers and researchers. HN threads on new Claude features are worth reading.
- clauderules.net (this site) — Community-curated CLAUDE.md rules, MCP server directory, Claude skills, and agent listings. Submit your own rules and configurations.
Learning Resources
- Anthropic Prompt Library — Official collection of ready-to-use prompts across dozens of categories. A practical reference for understanding what Claude excels at and how to phrase requests effectively.
- Prompt Engineering Guide — A comprehensive, model-agnostic guide to prompt engineering techniques — chain-of-thought, few-shot, role prompting, and more. Solid foundation for writing better Claude prompts.
- DeepLearning.AI + Anthropic Courses — Anthropic has co-created several free short courses on DeepLearning.AI, including "Prompt Engineering for Developers" and courses on tool use and multi-agent systems. Structured and beginner-friendly.
- Claude's Constitution — Anthropic's explanation of the constitutional AI approach and the principles that guide Claude's reasoning about ethics and safety. Understanding this makes Claude's behavior more predictable.
MCP Resources
The Model Context Protocol ecosystem is growing quickly. These are the most useful starting points:
- MCP Specification — The technical specification for the Model Context Protocol. Read this if you're building MCP servers — it covers the message format, tool schemas, resource handling, and lifecycle.
- MCP Server Directory (this site) — Curated list of community and official MCP servers with install commands. Browse by category to find servers for your use case.
- awesome-mcp-servers on GitHub — Community-maintained list of MCP servers across dozens of categories. A comprehensive index if you're looking for a specific integration.