MeowPass — Zero-Knowledge CLI Secret Manager · John Anthony Pecson
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Open Source · MIT Personal Project · Developer Tool

MeowPass

Secrets that sync themselves.

A CLI-first, end-to-end encrypted secret manager. A zero-knowledge vault for API keys, .env files, and team secrets, with a 14-tool MCP server so AI agents can deploy without ever seeing the values.

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The Problem

47 API keys, scattered everywhere.

Every team has the same chaos: secrets in Slack DMs, sticky notes, and .env files nobody dares to touch. The last "rotation" was copying a key from a coworker who left six months ago. New devs ask "where's the .env?" on day one.

MeowPass replaces the chaos with a single encrypted vault, every secret, every project, every teammate, one source of truth, and does it without the server ever seeing a plaintext value.

your-reality.env
# where was that Stripe key again?
STRIPE_KEY=sk_live_...check_slack_dm
# TODO: rotate this, 2 years old
DATABASE_URL=postgres://root:password123@…
# Mike had this. Mike left.
AWS_SECRET=AKIA...ask_devops
Architecture

Zero-knowledge by design.

Your master password derives the encryption key on your device with Argon2id. Secrets are sealed with AES-256-GCM before they ever leave your machine. The server only ever stores ciphertext, even a full database leak yields meaningless bytes.

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Sharing Team vaults use X25519 key exchange per member, no raw keys are ever shared, and a single mp rotate re-encrypts everything.
Features

Secrets managed everywhere you code.

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Install & CLI

Up and running in two minutes.

First-time setup
$ brew install meowrithm/tap/meowpass
$ mp login
$ mp init
✓ Pushed 12 secrets · created .meowpass.yaml
$ git add .meowpass.yaml && git push
New developer joins
$ git clone git@github.com:acme/api.git
$ mp login
$ mp pull
✓ Synced 12 secrets to .env
Ready to code. No Slack DM needed.
Homebrew
brew install meowrithm/tap/meowpass
npm (MCP server)
npx @meowlabs/meowpass-mcp
Tech Stack

Built to be fast and auditable.

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Roadmap

Where it's heading.

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I build tools developers actually use.

MeowPass is open source under MIT, explore the code, try the CLI, or join the community.