I gave my AI a memory that's just a folder of markdown I own

Short summary

Vellum is an open-source, self-hosted MCP server that lets AI agents read and write notes in a plain folder of markdown files you own. It ships as a 24 MB Go binary with no database, no embeddings, and ranked in-memory search. Any MCP client (Claude, Cursor, ChatGPT desktop) can connect, and you keep editing the same vault in Obsidian or git. The author launched it on Product Hunt and seeks feedback on the tool surface and no-embeddings approach.

• •Vellum is a self-hosted MCP server over markdown files — no database, no embeddings, just files you own
• •Ships as a 24 MB Go binary with 15 focused MCP tools, OAuth 2.1, and an embedded React UI
• •Works with Claude, Cursor, and ChatGPT desktop; vault stays editable in Obsidian or git

Generated with AI, which can make mistakes.