I built a memory layer that works across Claude, ChatGPT and Cursor — and rendered it as a 3D brain

Every AI tool remembers you a little. None of them remember you to each other. The context I build up in ChatGPT is invisible to Claude, and my Cursor sessions know nothing about either. And the worst version of it: having a genuinely useful long conversation, then watching it sink into an infinite sidebar where I'd never find it again. So I spent the last stretch building Mind Silo — one memory layer that all of them read and write to.

How it works

Capture. A Chrome MV3 extension passively reads conversations on Claude, ChatGPT, Gemini, Cursor and Claude Code. No copy-paste step, no "save this" button to remember to press.

Extraction. Raw transcripts are useless as memory — they're too long, too redundant, and semantically noisy. A background worker (Redis/Arq) distills each conversation into atomic memories: single facts, decisions, and preferences that stand on their own.

Storage. Postgres with pgvector. Each memory gets an embedding, and semantically related memories get connected into a graph rather than sitting in a flat list.