#2424th of 27 in Memory
ob1
Shared Postgres vector memory exposed to any AI client over MCP
- Stars
- 4.8k
- License
- custom license
- Last commit
- Sep 2026
- Language
- TypeScript
1,768 on 22 Apr 20264,771 on 11 Nov 2026
From GitHub's daily star counts.
Checked on GitHub.
Overview
Open Brain is a guide and contribution repo for building a personal memory store: a Supabase Postgres database with vector search, an MCP server deployed as an edge function, and Slack or Discord capture. Claude, ChatGPT, Cursor and Claude Code connect to the same database. The repo adds extensions, import recipes (ChatGPT, Obsidian, Gmail, X), agent skills, schemas, dashboards and a Kubernetes option.
Who it is for: Self-hosters wanting one persistent memory shared by their AI tools
Strengths
- One MCP-exposed database shared across Claude, ChatGPT, Cursor and Claude Code
- Many import recipes: ChatGPT, Perplexity, Obsidian, Gmail, X, Instagram, Google Takeout
- Kubernetes option runs on plain PostgreSQL with pgvector, no Supabase required
- Community contributions go through automated PR review, each with its own README
Weaknesses
- Default setup depends on Supabase, Slack and an AI gateway, not one self-contained binary
- Repo of guides, SQL and edge functions, not an installable package
- License is detected as NOASSERTION, so reuse terms need checking
- Setup takes about 45 minutes and several hosted accounts
What it needs
- no GPU
- Needs Supabase, PostgreSQL with pgvector, Slack or Discord, AI gateway
- Models: MCP clients: Claude, ChatGPT, Cursor, Claude Code
Also in Memory
See all 27| Rank | Project | Score |
|---|---|---|
| 1 | hindsightAgent memory server with retain, recall and reflect operations | 95 out of 100 |
| 2 | gbrainMemory store with sources and a knowledge graph for coding agents | 91 out of 100 |
| 3 | MemPalaceLocal verbatim memory store for AI agents with semantic search and MCP | 90 out of 100 |
| #4 | SupermemoryMemory and context engine for AI agents, with user profiles and hybrid search | 89 out of 100 |
| #5 | Mem0Long-term memory layer that stores and retrieves user facts for LLM agents | 88 out of 100 |