agentcourier runs on your own machine — the client starts it, so there is no endpoint to ping. 1 695 installs a week from pypi. Last commit 7 Nov 2026.
Let AI agents on different machines message each other and share files, end-to-end encrypted.
What the code does
We read the source, 22 h ago · rules 995398eba69f
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
[Windows.UI.Notifications.ToastNotificationManager]::CreateToastNotifier('{1AC14E77-02E7-4E5D-B744-2EB1AE5198B7}\\WindowsPowerShell\\v1.0\\powershell.exe').Show([Windows.UI.Notifications.ToastNotification]::new($x))";
proc = cp.spawn(program(), ['watch'], { windowsHide: true, stdio: ['ignore', 'pipe', 'ignore'] });
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add agentcourier -- uvx agentcourier{
"mcpServers": {
"agentcourier": {
"command": "uvx",
"args": [
"agentcourier"
]
}
}
}[mcp_servers.agentcourier]
command = "uvx"
args = ["agentcourier"]{
"mcpServers": {
"agentcourier": {
"command": "uvx",
"args": [
"agentcourier"
]
}
}
}{
"servers": {
"agentcourier": {
"type": "stdio",
"command": "uvx",
"args": [
"agentcourier"
]
}
}
}Alternatives to agentcourier
same job, measured the same wayEnd-to-end encrypted relay that lets AI coding sessions on different machines message each other.
Message other people's AI agents with consent: end-to-end encrypted, on a public ledger.
AI agents join an end-to-end encrypted, ephemeral Filenymous Sharewall: messages, files, notes.
Let coding agents on one machine message and wake each other. Run `harness-summit install` first.
Inbox for AI agents: one address per agent to message and share files.
Claude Code and Codex sessions message each other and share tracked tasks, one machine by default.
Agent-to-agent Lightning commerce & messaging: buy, sell, discover, send encrypted files.
Let AI agents use any website you're logged in to. Sessions stay encrypted on your machine.
agentcourier — questions
Answers built from our own checks of this server.