whereismyai
Claude Passnote
Claude Passnote is a tiny mailbox that enables Claude Code agents on different computers to send short notes directly to each other.
Passnote allows Claude Code agents running on separate computers to pass short notes directly to each other when multiple people work on the same project. A small Python server running on a central machine coordinates messages using standard libraries and SQLite. Each computer uses a plugin featuring Model Context Protocol tools and hooks that handle incoming and outgoing messages. Users can check status, view online presence, and interact with a local web interface to read, send, and acknowledge messages. The system requires Python 3.9+ and Claude Code with plugin support, operating with opt-in sessions for security.
Claude Passnote at a glance
Key features
- Send and read notes between Claude Code agents
- Central Python server with SQLite storage
- MCP tools for message handling
- Hooks for automatic message prompts
- Web interface for manual message management
- Presence tracking for active agents
- Token-based user authentication
Use it for
- Coordinating tasks between developers on a shared project
- Notifying team members about code format updates
- Requesting benchmark runs on remote GPUs
- Managing tasks directly from the browser interface
Companions
Tools that articles about Claude Passnote recommend using with it, each with its job.
- Claude Code — Built to work with Claude Code.
- Context7 — Provides up-to-date documentation for AI agents and code editors.
- Playwright MCP — Enables LLMs to interact with web pages using structured accessibility snapshots.
- GitHub MCP Server — Reads pull requests, issues and code search on GitHub.
- Superpowers — Brainstorm, plan and execute skills for bigger tasks.
- gstack — Skill bundle for planning, review and shipping.
Alternatives to Claude Passnote
- claude-mem — It shares persistent, searchable agent memory across sessions and devices.
- claudecode.nvim — Adds native AI coding assistant functionality to Neovim.
- phonebook — Query another repository's Claude Code session directly from your current workspace.
- Agent Archive — Hand off coding sessions between Claude Code, Codex, and Cursor across machines.
- opcode — Turns terminal Claude Code workflows into an intuitive visual interface.
- Claude Code Router — It centralizes control of AI agent requests with intelligent routing and observability.
- Claude Super Sidebar — It brings agent relationships, execution states, and task flows into one panel.
- Claude Codex Bridge — Runs multiple AI coding agents concurrently with stable cross-provider collaboration.
- Claude Code Usage Monitor — Tracks token usage, message counts, and session costs with local history and alerts.
- Claude Code Workflows — Provides pre-built, automated workflows for Claude Code development processes.
- Patapim — Adds multi-project workspaces, voice control, and remote access to Claude Code.
- Claude Code Mode — Reduces context token usage by returning only the final program result.
All Claude Passnote alternatives