Allows sending email notifications and reminders through Resend, including missed check-in reminders and release notifications.
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type @ followed by the MCP server name and your instructions, e.g., "@deadman create a dead man's switch for my crypto, check in every 30 days"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
A dead man's switch for your crypto. Write down where the wallets, seeds and logins are, seal it with a passphrase only your family knows, and check in now and then. If you stop checking in, the people you chose get the sealed bundle.
Web: https://deadman.switch.pit.world (on Moshpit DNS: https://deadman.switch)
CLI and TUI: bunx @profullstack/deadman
MCP: claude mcp add deadman -- bunx @profullstack/deadman mcp
API: https://deadman.switch.pit.world/api/v1 (Authorization: Bearer ds_…)
Seal. The bundle (a note plus files) is encrypted on your device: PBKDF2-SHA256 (600,000 rounds) into AES-256-GCM. The server stores only the ciphertext. You give the passphrase to your heir yourself.
Check in. Every 1 to 365 days. The email link, the push notification's "I'm OK" button, the web, the CLI, the API or MCP all restart the clock.
Reminders. A missed check-in gets three reminders across the grace period (1 to 30 days), by email and push, and on paid plans a phone call on the last one. Reminders are at least 12 hours apart.
Release. Only after the grace period, and at least a day after the last reminder (so an outage can never skip the warnings), each recipient gets their own link. The page shows your hint, asks for the passphrase, and opens the bundle in their browser.
The server cannot read a bundle, and nobody can open one before it fires.
Related MCP server: zKettle
Free | Keeper ($49/year or $149 for life) | |
Switches | 1 | 10 |
People per switch | 2 | 10 |
Sealed bundle | 64 KB | 5 MB |
Reminders | email, push | email, push, phone call |
Paid in crypto through CoinPay. A lapsed plan never switches protection off: existing switches keep running on the free channels.
deadman login ds_… # key from /me#account
deadman status
deadman checkin
deadman new "My crypto" --every=30 --grace=7 --to=kid@example.com
deadman seal "My crypto" note.md seed-card.png --hint="first dog, then the year"
deadman read "My crypto"
deadman open https://deadman.switch.pit.world/r/r_…Bun + Hono + Postgres (DATABASE_URL). Tables are made on boot.
bun install
DATABASE_URL=postgres://… DEADMAN_SECRET=$(openssl rand -hex 32) bun src/server.tsVariable | |
| Postgres |
| 32+ characters; signs check-in links and CSRF tokens |
| email (without a key, mail goes to the log) |
| web push ( |
| payments |
| phone calls |
| accounts that get Keeper free |
|
Tests: TEST_DATABASE_URL=postgres://postgres:test@127.0.0.1:55491/postgres bun test
(see test/app.test.ts for a one-line docker Postgres).
Deploy: bin/install.sh on the box (OpenInstall), settings in bin/install.conf.
MIT. By Profullstack, Inc.
This server cannot be deployed
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