ob1-setup

OB1 (Open Brain)

What It Is

OB1 is a persistent memory/knowledge base built on Supabase (PostgreSQL + pgvector) with an MCP server. It gives Hermes long-term memory — search, capture, and recall across sessions.

Architecture

• Database: Supabase (free tier) — stores thoughts as text + vector embeddings
• AI Gateway: OpenRouter — generates embeddings and powers search
• MCP Server: Supabase Edge Function — exposes memory tools to Hermes
• Auth: Access key embedded in URL

Connected to Hermes

Connected via MCP (HTTP transport) with the following config:

mcp_servers:
  open-brain:
    url: "https://rrqongjwdyvwkkzvtsop.supabase.co/functions/v1/open-brain-mcp"
    headers:
      x-access-key: "<redacted>"

Available Tools

• mcp_open_brain_capture_thought — Save new memories
• mcp_open_brain_search_thoughts — Semantic search
• mcp_open_brain_fetch — Retrieve by ID
• mcp_open_brain_list_thoughts — Browse recent captures
• mcp_open_brain_thought_stats — Overview stats