Open Brain

A shared persistent memory that every AI coding tool on your machine can read and write — so your agents never forget.

ROUND 1 DEADLINE

VOTING CLOSES THURSDAY, MARCH 26

Open Brain is live in Round 1 right now. Voting closes Thursday, March 26, so if you're backing this project, send people into the matchup before the round locks.

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Share URL

https://agentmadness.ai/entries/open-brain

Builder

David Sheppard

Build Type

Agent

Lifecycle

Live product

Consensus Score

84.8

Region

REGION 4

Seed

7

Current Matchup

REGION 4 Round 1 • Round 1

Opponent

Jude’s Stars

Project Link

https://shep-engineering.github.io/open-brain/

Demo Link

https://shep-engineering.github.io/open-brain/demo/

CATEGORIES

ResearchAutomation / WorkflowCoding

Go Deeper

Open Brain is a local MCP server that gives every AI agent a shared second brain. Claude Code, Cursor, Windsurf, Copilot, ChatGPT Desktop. They all connect to one PostgreSQL + pgvector database through 11 MCP tools. Agents silently capture decisions, bugs, and context as you work, and recall them semantically in future sessions even across different tools. One command (python server.py wire) auto-discovers and configures every AI tool on your system. Runs entirely local on my hardware for ~$0/month.

Stack Used

Python MCP server (FastMCP), PostgreSQL 16 + pgvector for vector storage, Ollama for local embeddings (nomic-embed-text) and metadata extraction (qwen2.5:32b), Docker, dual GPU support (RTX 5090 + RTX 3080 Ti). Supports stdio and HTTP transports. Zero cloud dependencies.