Project Tessera

Project Tessera is an open-source, local-first memory and knowledge base layer for AI assistants like Claude, ChatGPT, Gemini, and Copilot. It sits between the user and their AI tools to capture conversations, index documents (40+ formats), and provide smart, searchable memory, so AIs can recall and share context, decisions, and preferences across sessions and tools. Tessera features encryption, knowledge graph construction, user profiling, and local document ingestion, making it ideal for privacy-conscious users and teams managing complex, cross-tool workflows.