Connects Claude to a curated knowledge base of researched answers from official documentation, specs, and RFCs across 40+ developer domains. Exposes four tools: ask_question for expert answers with sources, preflight_check to verify what knowledge exists before starting work, search_questions to browse by topic, and get_stats for coverage metrics. Free tier gives you 300 queries per month with no API key required. Reach for this when you want answers vetted against canonical sources rather than general web search results, especially for database engines like PostgreSQL and MySQL, frameworks like Next.js and Django, or infrastructure tools like Docker and Kubernetes.
claude mcp add --transport stdio io.github.cranot-agentskb uvx agentskb