Second Brain for AI
Persistent memory for Claude, ChatGPT & Cursor. Free.
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Every AI conversation starts from zero. Your projects, decisions, and preferences disappear as soon as you close the chat. Second Brain fixes that. It is a self-hosted memory layer that works with Claude, ChatGPT, Cursor, and any MCP client. You can store context once and recall it by meaning instead of keywords. It includes duplicate detection, semantic search, and a web UI. Built on Cloudflare, it offers a free tier and your data remains yours. MIT licensed.
PH · launched May 31, 2026 · 284 upvotes (top 39%) · 1 view
Niche: ai agent memory infrastructure · 350 launches, 11 in the last 7 days ▼ -58% · Explore this niche →
Category and tags
- Horizontal
- Data infrastructure
- Prosumer
- AI-native
- Commercial product
- Open Source
- Developer Tools
- Artificial Intelligence
Visit website ↗ Source listing ↗
More like this: all 350 launches in ai agent memory infrastructure →
Could you build this?
Yes This is a self-hosted Model Context Protocol (MCP) server that embeds chat history or notes into a local vector database (like Chroma or SQLite-vec) and exposes standard semantic search endpoints to LLM clients.
Competitors
Other products that read as similar to this one : 705 launches clear the similarity bar, closest 8 shown.
Attention rank: #333 of 706 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 206 days after the earliest competitor.
- 2Mind · ph · 2026-11-06 · 2 upvotes · similarity 0.68
- Living Brain · ph · 2026-11-05 · 186 upvotes · similarity 0.67
- Make0 Brain · ph · 2026-10-14 · 74 upvotes · similarity 0.60
- Dray · ph · 2026-11-05 · 2 upvotes · similarity 0.60
- Free AI interface with memory · ph · 2026-10-23 · 1 upvotes · similarity 0.59
- ContextPool · ph · 2026-04-13 · 179 upvotes · similarity 0.59
- Memory Bridge · ph · 2026-11-09 · 2 upvotes · similarity 0.59
- Relay Memory · ph · 2026-11-04 · 2 upvotes · similarity 0.57
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.