MyAITwin

A personal RAG system that turns your chats into a searchable knowledge base where everything sounds like you when retrieved. You get 19 tools split between storing knowledge (add_knowledge, add_voice_note, add_from_url), retrieving it with semantic search (search_twin, get_by_type), and managing schema (add_schema_type). Runs on PostgreSQL for structured data and Pinecone for vector search. The architectural choice that matters: it separates what you know from how you say things, so when you ask for output it combines both. OAuth 2.1 authentication, multi-tenant isolation tested with 35 cross-tenant checks, and you control the type system from inside Claude. Free during early access at myaitwin.lutolearn.com.