Second Brain for AI: Persistent Memory for ChatGPT & Claude
Self-hosted memory layer for AI conversations with semantic search and duplicate detection
★ 4.0 / 5 iKeep scoreScreenshots
Quick facts
Overview
Second Brain is a self-hosted memory layer that works with AI clients like Claude, ChatGPT, and Cursor. It stores context persistently, allowing recall by meaning rather than keywords. Built on Cloudflare, it offers a free tier and ensures data ownership with an MIT license.
Getting Started with Second Brain
- Sign up for CloudflareCreate a Cloudflare account if you don't have one, as Second Brain is built on Cloudflare Workers.
- Deploy Second BrainFollow the deployment instructions to self-host Second Brain on your Cloudflare Workers account.
- Connect AI clientConfigure your preferred AI client (ChatGPT, Claude, or Cursor) to interface with your Second Brain instance.
- Start using memoryBegin conversations through your connected AI client, which will now store and recall context via your Second Brain.
Pricing
| Plan | Price | Note |
|---|---|---|
| Free tier | Free | — |
💡 Indicative pricing — check the official rates at ph-files.imgix.net · Updated 7/16/2026
Key features
- Persistent memory for AI conversations
- Semantic search by meaning, not keywords
- Duplicate detection at the vector layer
- Self-hosted with Cloudflare Workers
- Web UI for managing stored context
- MIT licensed with 100% data ownership
Pros
- Eliminates the need to restart AI conversations from scratch
- Decentralized architecture with self-hosting option
- Works across multiple AI platforms (Claude, ChatGPT, Cursor)
Cons
- Dependent on Cloudflare's serverless infrastructure
- May face limitations under highly concurrent loads
Use cases
- Developers working with multiple AI tools
- Teams needing persistent AI conversation history
- Projects requiring semantic search across AI interactions
The verdict
Second Brain solves a real pain point for AI power users by providing persistent memory across platforms, though its Cloudflare dependency may limit some use cases.
✓ Who should use it
Developers who regularly use multiple AI platforms and want to maintain context across conversations.
✕ Who should skip it
Casual AI users who don't need persistent conversation history across sessions.
Categories
Community
- GitHub Issues ↗Discussion forum for memory layer AI tools
Great for
Frequently asked questions
Is Second Brain for AI: Persistent memory for Claude, ChatGPT & Cursor. Free. | Product Hunt free?
Free tier available
What is Second Brain for AI: Persistent memory for Claude, ChatGPT & Cursor. Free. | Product Hunt best for?
Developers and teams using multiple AI platforms who need persistent conversation memory
Does Second Brain for AI: Persistent memory for Claude, ChatGPT & Cursor. Free. | Product Hunt have an API?
Yes, Second Brain for AI: Persistent memory for Claude, ChatGPT & Cursor. Free. | Product Hunt offers an API.
Can I self-host Second Brain for AI: Persistent memory for Claude, ChatGPT & Cursor. Free. | Product Hunt?
Yes, Second Brain for AI: Persistent memory for Claude, ChatGPT & Cursor. Free. | Product Hunt can be self-hosted.
Who should use Second Brain for AI: Persistent memory for Claude, ChatGPT & Cursor. Free. | Product Hunt?
Developers who regularly use multiple AI platforms and want to maintain context across conversations.
Reviews 4.0 ★ · 1 review
Second Brain delivers on its promise of persistent AI memory with an elegant, decentralized approach. The semantic search and duplicate detection features stand out, making it invaluable for developers juggling multiple AI tools. While the Cloudflare dependency introduces some limitations, the MIT license and self-hosting option provide welcome flexibility. This is a must-try for teams serious about AI integration.
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