Second Brain
Shared memory system for AI tools, self-hosted on Cloudflare
Visit thesecondbrain.dev ↗What is Second Brain?
Second Brain is an open-source memory layer that connects multiple AI tools—Claude, ChatGPT, Cursor, Codex, and MCP-compatible clients—so they share context across conversations. Instead of repeating projects, decisions, and preferences in each tool, users save information once and recall it anywhere. The system runs in your own Cloudflare account, retrieves memories by meaning rather than exact wording, and includes features like automatic classification, duplicate detection, and time-aware ranking.
Designed for individuals and teams, Second Brain offers a desktop app for quick setup, a web dashboard for managing memories, and integrations with browsers, Obsidian, Notion, calendars, and email. Team Edition adds shared memory layers alongside personal workspaces. The project describes itself as built with Codex and Cursor tools.
Momentum
Daily activity over the last 30 days: upvotes, unique visits, new GitHub stars and Hacker News points.
How do we know it's vibe coded?
vibetrend discovered Second Brain automatically. Evidence: GitHub rahilp/second-brain-cloudflare; repo has .codex, .cursor. View source.
Similar vibe-coded apps
IDE to orchestrate multiple coding agents in one workspace
Local-first AI agent workspace with desktop GUI and terminal TUI
Shared persistent memory for AI coding tools across sessions and applications
Agent-first task management platform connecting all your AI agents via MCP
Open-source AI sales OS with WhatsApp agents and self-hosted CRM
Multi-device control room for AI coding agents, open-source and self-hostable
AI framework that injects project specs into coding agents across 20+ platforms