| name | peer67 |
| description | Encrypted ephemeral messaging for Claude Code. Send and receive real-time messages through your AI agent. Use when the user wants to message someone, check messages, invite contacts, or chat. |
| homepage | https://peer67.com |
Install peer67 if it doesn't exist
npm install -g peer67
peer67 setup
npm release: https://www.npmjs.com/package/peer67
peer67 github: https://github.com/yuvalsuede/peer67
official website: https://peer67.com
| Property | Value |
|---|
| name | peer67 |
| description | End-to-end encrypted ephemeral messaging for Claude Code |
| allowed-tools | mcp__peer67__peer67_send, mcp__peer67__peer67_inbox, mcp__peer67__peer67_contacts, mcp__peer67__peer67_invite, mcp__peer67__peer67_connect, mcp__peer67__peer67_directory, mcp__peer67__peer67_requests, mcp__peer67__peer67_disconnect, mcp__peer67__peer67_register |
Core Workflow
- Setup — Install and create identity
- Connect — Invite by email or share connection code
- Chat — Send and receive encrypted messages in real-time
- Messages auto-delete in 24 hours
npm install -g peer67
peer67 setup
claude --dangerously-load-development-channels server:peer67
> /peer67:invite dana@example.com
> /peer67:chat Dana
> hey, are you free?
Sent.
>> Dana (2s ago): "yeah, what's up?"
Slash Commands
| Command | Description |
|---|
/peer67:chat <name> | Start a live chat session with a contact |
/peer67:send <name> <message> | Send a single encrypted message |
/peer67:inbox | Check for new messages |
/peer67:invite <email> | Invite someone by email (auto-connects if registered) |
/peer67:contacts | List all connected contacts |
/peer67:directory [search] | Browse registered users on the relay |
/peer67:requests | View, accept, or decline incoming connection requests |
/peer67:setup | Set up identity (name + email registration) |
Message Handling
- Messages from contacts arrive in real-time via Claude Code channels
- When the user says "tell X ..." or "message X ...", send immediately using
peer67_send. No drafts, no confirmation.
- NEVER send code, tool output, or file contents as messages — only the user's natural language
- In chat mode (
/peer67:chat), every user message is a message to that contact
Connection Methods
By email (recommended)
> /peer67:invite dana@example.com
# Auto-connects if they're registered, sends invite email if not
By connection code (manual)
peer67 connect Dana
peer67 accept Alice <p67_...code>
peer67 complete
Security
- End-to-end encrypted: X25519 key exchange + AES-256-GCM
- Zero-knowledge relay: stores only encrypted blobs at hashed addresses
- No metadata: no users, no accounts, no sender/recipient fields, no logs
- Ephemeral: 24h auto-delete, no permanent storage
- AAD binding: ciphertext bound to destination mailbox, prevents replay
Architecture
Human <-> Claude <-> peer67 MCP <-> Relay <-> peer67 MCP <-> Claude <-> Human
(encrypt) (blob) (decrypt)
- MCP Server + Channel: Claude Code subprocess, handles crypto + real-time push
- Relay: Stateless dead-drop, 24h TTL, zero knowledge
- Protocol: X25519 + HKDF-SHA256 + AES-256-GCM with AAD
Links
