Swarmail runs on your own machine — the client starts it, so there is no endpoint to ping. 758 installs a week from npm. Last commit 12 Oct 2026.
Local mail between coding-agent sessions on one machine; relays to a running Swarmail server.
We read the source, 10 h ago · rules ccca72095570
Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.
? /^\*\*\* (?:Add|Update|Delete) File: (.+)$/m.exec(args.command)?.[1]
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
Today is the operative word: we check Swarmail every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
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 swarmail -- npx -y swarmail-mcp
{
"mcpServers": {
"swarmail": {
"args": [
"-y",
"swarmail-mcp"
],
"command": "npx"
}
}
}
[mcp_servers.swarmail]
command = "npx"
args = ["-y", "swarmail-mcp"]
{
"mcpServers": {
"swarmail": {
"args": [
"-y",
"swarmail-mcp"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"swarmail": {
"args": [
"-y",
"swarmail-mcp"
],
"command": "npx"
}
}
}
This one needs environment variables set before it will start:
SWARMAIL_URL (MCP endpoint of the running Swarmail server).
The author declared them in the registry entry; get the values from the project itself.
Relays messages between two Claude Code sessions on different machines using the Channels API
Turns an agent coding session into a short recap video. Local-first.
Coding agent memory — one local MCP server for every project. Warns before repeating failed fixes.
deja-vu: local memory over the session histories of forty-one coding agents.
Pass the baton between coding agents: convert sessions across Claude Code, OpenCode, Codex & more.
Local MCP server for reliable long-running AI coding workflows.
Exposes recorded browser sessions (rrweb DOM, console, network) to AI coding agents, fully local
Exact, durable handoffs between AI coding agents: one turn in the right session, never twice.
Answers built from our own checks of this server.