Submit a resource

Navigation

Back to directory

Open Brain

A self-hosted infrastructure layer built around one database and one AI gateway, so every AI assistant a person uses shares the same persistent memory instead of keeping separate, disconnected histories.

Visit website (opens in a new tab)github.com
Open Brain

Open Brain (OB1) is a database with vector search and an open protocol, built so that every AI tool in use, including Claude, ChatGPT, Cursor and Claude Code, can plug into the same persistent memory rather than each keeping its own. It is set up as one database, one AI gateway and one chat channel, without middleware or other service chains in between.

A setup guide walks through building the full system, including the database, AI gateway and a Slack capture path, in about 45 minutes, or it can be built with the help of an AI coding tool pointed at the repository. Companion prompts help migrate existing notes, and dedicated assistants, including a Claude Skill, a ChatGPT Custom GPT and a Gemini Gem, answer setup questions.

More in Agent memory

See all 450

  • AI Agent Memory: The Definitive Guide

    cognee.ai

    A long technical guide to AI agent memory: why stateless LLMs need it, the different memory architectures from vector stores to knowledge graphs, and how Cognee implements one as an open-source memory layer.

  • lossless-memory

    note.com

    A local, file-based long-term memory layer for a personal AI that never summarizes conversations, keeping every line with a timestamp and searching by time first and words second, rather than retrieving only similar-seeming chunks.

  • NEOTH

    deepwiki.com

    A local-first personal AI daemon in Rust with five memory tiers, consent-gated tools, a WASM plugin sandbox, multi-provider model routing and signed audit logs, aimed at people who want both a daily assistant and a serious coding helper.

Cookies

We use necessary cookies to run the site. Measurement and marketing are optional; neither is used today. Privacy policy