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All three products are free for now

Memory you own.
Agents you govern.

Meet the KeepMind family: a personal second brain, a corporate second brain and an agentic company OS. Plain Markdown memory you own. Works with any AI model.

Choose your KeepMind installer View on GitHub (opens in a new tab)

The family

For your mind

01
Free · Open source (MIT)

KeepMind

A personal second brain. Your knowledge, beyond any one model.

Explore KeepMind

For your company

02
Free · Ships inside KeepMind

KeepMind Corp

A corporate second brain. Company memory, with boundaries.

Explore Corp

For your agents

03
Free · Download coming soon

KeepMind OS

An agentic company on your desktop. Humans stay in charge.

Explore OS

01 / KeepMind

A second brain that stays yours.

KeepMind is an open-source second brain that works with any AI model. On macOS, Windows and Linux, or headless on a VPS.

Plain Markdown. Yours.

Memory lives in a private GitHub repository you own, with continuous sync. Change models without leaving your knowledge behind.

Local when you want it.

A bundled llama.cpp model runs fully offline. Use local inference or connect your preferred provider.

Encrypted sync, optionally.

End-to-end encrypted GitHub sync uses a passphrase. Wrong passphrases and tampered files fail closed.

Memory that settles in.

Short-, medium- and long-term memory, with a nightly sleep cycle that distills facts, lessons and skills.

Connections, in context.

One Markdown page per recurring person, project or topic. Wikilinks connect them into a lightweight knowledge graph.

Search on your machine.

Local keyword and vector search, with an optional on-device embedding model.

A place for today.

Intentions, tasks, quick notes and Markdown notes, plus natural-language automations and webhook triggers.

Memory for your tools.

A built-in MCP server lets agents search, read and write memory, with scoped permissions.

Works with

  • llama.cpp · local
  • Claude
  • Codex
  • GPT
  • Gemini
  • Grok
  • Ollama

MCP clients

  • Claude Code
  • Codex
  • Cursor
  • Gemini CLI
  • Grok

Start from source

Your next second brain.

GitHub (opens in a new tab)Choose your KeepMind installer 
git clone https://github.com/criptogus/keepmind.git
cd keepmind
npm install
npm run dev

02 / KeepMind Corp

Free · Ships inside KeepMind

Company knowledge. Clear boundaries.

KeepMind Corp is free for now. Its current security features ship inside KeepMind today. There is no separate Corp app or hosted service.

Built on primitives that already ship in KeepMind

Spaces

A personal space and a space per company. Only the active space and explicit grants can be read or searched.

A key per space

Separate 256-bit data keys. Encrypt-all by default; locked keys fail closed.

Classification

Public, internal, sensitive or secret. Detectors identify personal data and secrets; secret matches are masked into the OS keychain.

Scoped MCP

Allowed spaces, a classification ceiling and write permission per client. Unknown clients get no spaces; writes are off by default.

Access log

Content-free allowed/denied records. No note content is logged. If the log is unavailable, reads are refused.

Model egress gate

Sensitive and secret text stays on local inference by default. Cloud use requires explicit, expiring consent per space and provider.

Looking ahead

What’s next (not available yet)

Future product line. Not scheduled.

  • Multi-user collaboration
  • SSO (OIDC / SAML) and RBAC
  • Admin console
  • Enterprise key management
  • Self-hosted container and/or managed cloud edition
Download KeepMind (free)

03 / KeepMind OS

Free · Download coming soon

Agents do the work. You make the call.

KeepMind OS is a local-first desktop operating layer for human-governed agent teams. Private pre-release.

A company, on your machine.

Set up a company, add agents and assign tasks. A local-first desktop app with an embedded local database and a loopback-only server.

Every output, human-reviewed.

Agent output always goes to human review. Completion and publication are never automatic.

Spend starts switched off.

Paid execution requires your own key, known prices, a positive monthly cap and consent on every launch. Hard caps per agent stop execution at the budget limit.

Model connectors

  • OpenAI-compatible endpoints
  • OpenRouter
  • DeepSeek
  • Local Hermes gateway
  • Codex
  • Claude · API or CLI login

KeepMind memory, read-only per company (in development)

Planned integration: each company reads only its own vault, up to internal classification. Everything else is denied and logged. If memory is unavailable, the task is blocked. Not released.

macOS first. Windows and Linux in progress. The app shows “Powered by Zeroagency.ai”.

KeepMind OS for macOS, coming soonGet notified by email

How it fits together

Your memory. Your company. Your agents.

You

KeepMind

Personal memory

Company

KeepMind Corp

Spaces per company · inside KeepMind

Agents

KeepMind OS

Reads company memory, read-only
In development

You own the files

KeepMind memory is plain Markdown in your own private GitHub repository.

Any model

Keep your knowledge as you switch between local models and cloud providers.

Humans approve

KeepMind OS sends every agent output to human review.

Fail closed

Locked keys, unavailable audit logs and denied memory access stop the operation.

Free desktop app

Download KeepMind.

Your memory, on macOS, Windows and Linux. Corp features ship inside KeepMind.

Download for macOS (.dmg)
Download for Windows (.exe)
Download for Linux (AppImage)
Download for macOS (.zip)All builds (opens in a new tab)

KeepMind 0.2.4 · continuous pre-release built from main. Apps self-update.

A few answers

FAQ

Is KeepMind free?

Yes. KeepMind is free and open source under the MIT license. All three products are free for now.

How do I install KeepMind?

Download KeepMind for macOS, Windows or Linux from the continuous pre-release builds on this page, or build from source using the GitHub repository. Apps self-update from the continuous channel.

Where is my data stored?

KeepMind memory is plain Markdown in a private GitHub repository you own, synced with local files. Optional end-to-end encryption protects GitHub sync. KeepMind OS runs locally on your machine with an embedded database.

Which models does it work with?

KeepMind supports a bundled offline llama.cpp model, Codex/ChatGPT sign-in, Claude subscription tokens, and API keys for Anthropic, OpenAI, Gemini, Grok and Ollama. Its MCP server works with Claude Code, Codex, Cursor, Gemini CLI, Grok or any MCP client.

Is KeepMind Corp available?

Corp is free for now and ships inside KeepMind, with no separate app or hosted service. Spaces, per-space keys, classification, scoped MCP, access logs and the model egress gate already ship in KeepMind. Multi-user, SSO, an admin console and self-hosted or cloud editions are future roadmap items, not scheduled.

Is KeepMind OS available / open source?

KeepMind OS is free for now, a private pre-release with private source. Public download coming soon; get notified by email at contact@zeroagency.ai. macOS is the first target; Windows and Linux builds are in progress. KeepMind memory integration is in development and not released.

Who builds KeepMind?

KeepMind is made by Zero Agency, a company run by AI agents, supervised by a human founder.

Start with your own memory.

Get KeepMind. Bring your knowledge. Choose your model.

Choose your KeepMind installer