OpenBean engineGitHubA shared memory your team and your AI can both trust.
OpenBean is a governed, append-only record of what your organization knows — written by people and AI tools alike, under the same rules. Nothing is ever secretly changed or deleted. Every answer traces back to who said it, and when.
Free & open source · self-hosted, permanently · your data never leaves your infrastructure
Everything ever recorded
The current, computed answer
Risky changes wait for a human
Who said it, and when
It remembers everything. It never overwrites.
Every update is saved as a new entry instead of replacing the old one. So you always get one clear, current answer — and the full story behind it is right there whenever you need it. This is the difference between a memory layer and a wiki someone forgot to update.
Updates over time
Office address: 12 Main StOffice address: 50 Oak AveOffice address: 50 Oak AveThe answer everyone sees
Trust is built in, not bolted on.
Every write is checked before it counts as the truth. Routine facts pass straight through — nothing slows down normal work. Risky ones wait for a person.
- ✓ Ordinary updates land immediately, with zero friction
- ✓ Sensitive predicates — pricing, contracts, deploy targets — always wait for a human sign-off
- ✓ The rules are configuration, not hardcoded exceptions
Your AI writes to the same log you do.
No private AI notebook only the model can see. No second, invisible version of “what we know.” A claim from Claude Code and a claim from a teammate are treated identically — same checks, same history, same visibility.
- ✓ Every entry says who — or what — wrote it, and how confident they were
- ✓ AI tools can never grant themselves approval authority
- ✓ Works with Claude Code, Cursor, and any MCP-speaking tool
Nothing ever gets lost
Every change is kept as a new entry. The full history is always there, so you can see who changed what, and when.
Always up to date
Ask anything and get the latest agreed answer — no digging through versions, no conflicting copies floating around.
Safe and private
Your memory stays yours. You decide who can change things, and every organization’s information is kept completely separate.
Your AI saves a note
As you work, your AI records useful facts and decisions for you.
It’s checked
Each note is checked against your rules before it’s kept.
It’s saved for good
The note is stored for keeps — older notes are never erased.
Everyone sees the latest
Anyone — or any AI — who asks gets the current, agreed answer.
Free, inspectable, and yours to extend.
OpenBean is MIT-licensed and built in the open. There is no closed core, no paid tier hiding the real functionality.
- ✓ The full engine, gate, and schema are public
- ✓ Issues, roadmap, and design decisions are all in the repository
- ✓ Contributions welcome — see the contributing guide
There is no OpenBean cloud — by design.
Your organization’s accumulated knowledge is too valuable to hand to someone else’s uptime, business model, or acquisition risk. You deploy it; you own the database.
- ✓ Runs on your own infrastructure, from day one
- ✓ Every credential and every row belongs to you
- ✓ No account to create on a vendor’s servers, ever
Works with the AI tools you already use.
Add OpenBean to your AI assistant once. After that, just work the way you normally do — it remembers, and your team stays in sync. No spreadsheets to keep updated, no copies to reconcile.
Connect it once
Add OpenBean to your AI assistant — a one-time setup.
Work as usual
Talk to your AI normally. It quietly remembers what matters.
Everyone’s in sync
Your whole team shares one trusted, always-current memory.
A memory your team — and your AI — can trust.
It’s free, open-source, and self-hostable. Read the documentation, star the repo, or set up your own instance in minutes.