Second Brain
Self-hosted AI memory layer on Cloudflare’s free tier
- Who it's for
- People using AI assistants who want persistent memory across tools and sessions
- Use cases
- Recall saved decisions across different AI tools
- Organize projects with tagged memories for context
- Keep writing preferences and lessons across sessions
- Alternative to
- Mem0
- Pricing
- Free
- Platforms
- Web · Windows
About Second Brain
Second Brain gives your AI tools persistent memory across sessions. Built on Cloudflare Workers, D1, Vectorize, and Workers AI – all on the free tier. Connect to Claude, ChatGPT, Cursor, Windsurf, or any MCP-compatible client in minutes. Features: semantic search with time-decay reranking, contradiction detection, tag-based recall, importance scoring, LLM-synthesized insights, and OAuth on the MCP endpoint. Your data lives in your own Cloudflare account – zero vendor lock-in. Integrations: Obsidian plugin (in the community directory), CLI (npm), Chrome extension, iOS Shortcuts, and a Web UI…
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R
Rahil Pirani
Maker of Second Brain
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StatusOnline
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ListedApr 22, 2026
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