Open Brain provides an infrastructure layer for persistent memory across AI tools, using a database with vector search and an open protocol. It includes setup guides, companion prompts, and MCP-related extensions via recipes and skills.
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What it is
Open Brain is described as "The infrastructure layer for your thinking. One database, one AI gateway, one chat channel. Any AI you use can plug in. No middleware, no SaaS chains, no Zapier." It aims to provide a shared memory layer across AI tools with a database that supports vector search, an open protocol, and extensible components like extensions, recipes, and skills.
How it works
The project assembles a database, AI gateway, and chat channel to enable cross-tool memory sharing. It supports multiple AI clients (Claude, ChatGPT, Cursor, etc.) through an open protocol and a memory layer that persists across tools. It includes an MCP server and capture mechanisms via Slack and other integrations as part of the full system described in the Getting Started guide.
Getting started
Getting started materials in the README include:
- Setup Guide — Build the full system (database, AI gateway, Slack capture, MCP server) in about 45 minutes.
- AI-Assisted Setup — Use Cursor, Claude Code, or another AI coding tool to set up the system.
- Companion Prompts — Prompts to migrate memories and discover use cases.
- Extension 1 — Start building.
- FAQ for common questions and a Claude Skill, a ChatGPT Custom GPT, and a Gemini GEM for real-time help.
Commands are referenced in the README as links to documentation, not as shell commands in the README excerpt provided.
Recent releases
There are no release entries listed under Latest 0 in the RELEASES section. The README excerpt does not provide further versioned release details.
Traction
The repository shows 4386 stars and 847 forks. Open issues are 223.
Behind the repo
The project is led by Nate B. Jones, with references to associated Substack and Discord community resources. No startup or company link is provided beyond author references in the README excerpt.
Caveats
- License: none listed in the provided metadata.
- Created: 2026-03-11.
- Last push: 2026-08-04.
- Language: TypeScript.
- Topics include ai-agents, memory-layer, open-brain, open-source, personal-knowledge-management, supabase.
- No explicit release versions are listed in the latest releases section.