Second Brain Cloudflare

What it does

Second Brain provides a unified personal memory layer that allows multiple AI clients to share a common knowledge base. By hosting the server on Cloudflare Workers (using D1 and Vectorize), it creates a persistent, semantic memory that survives across different conversations and tools, preventing the "starting from zero" problem in AI interactions.

Tools

• remember: Stores new ideas, decisions, or project context into the memory layer.
• append: Updates existing entries with new information without creating duplicates.
• recall: Performs a semantic search with recency bias to find relevant memories by meaning.
• list_recent: Retrieves the most recently stored memories in chronological order.
• forget: Deletes a specific memory entry and all its associated vector chunks.

Installation

Deploy via the Cloudflare Workers one-click deploy button. During deployment, set your AUTH_TOKEN (e.g., using openssl rand -base64 32).

To connect to Claude Desktop, add the following to your claude_desktop_config.json:

{
  "mcpServers": {
    "second-brain": {
      "command": "npx",
      "args": ["-y", "@rahilp/second-brain"],
      "env": {
        "AUTH_TOKEN": "your-token-here",
        "WORKER_URL": "https://your-worker-url.workers.dev"
      }
    }
  }
}

Supported hosts

• Claude
• ChatGPT
• Cursor
• iOS (via Shortcuts)