"Understanding OAuth 2.0 Protocol" matching MCP connectors:

Multilingual YouTube → Knowledge Pack engine. Paste a video URL and get a structured pack — summary, key ideas, glossary, quiz, transcript with timestamps — in Spanish, Portuguese, German, or English. Anonymous endpoint plus OAuth-gated tools for library search, RAG Q&A on a single pack, and Anki export.

Job search and interview prep MCP. 11 tools, OAuth 2.1, cross-LLM. four-leaf.ai.