Zerosmtp MCP Server
by msgwingio.github.msgwing/zerosmtpv1.0.2
A free SMTP relay that still takes a username and password, for devices that cannot do OAuth 2.0.
context tax
queued
security
queued
cold start
queued
freshness
Active19d ago
Install Zerosmtp MCP server
Install in Claude Code
claude mcp add zerosmtp -- npx -y zerosmtp-mcpInstall in Cursor
{
"mcpServers": {
"zerosmtp": {
"command": "npx",
"args": [
"-y",
"zerosmtp-mcp"
]
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"zerosmtp": {
"command": "npx",
"args": [
"-y",
"zerosmtp-mcp"
]
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"zerosmtp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"zerosmtp-mcp"
]
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"zerosmtp": {
"command": "npx",
"args": [
"-y",
"zerosmtp-mcp"
]
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Freshness
Active — last maintenance signal 19d ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-09-20 · 19d ago · GitHub
Latest release
2026-08-29 · 41d ago · GitHub · v1.8.0
Package published
no data · npm/PyPI
Registry entry updated
2026-09-01 · 38d ago · official registry · v1.0.2
FAQ
›How do I install the Zerosmtp MCP server in Claude Code?
Run: claude mcp add zerosmtp -- npx -y zerosmtp-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Zerosmtp require an API key?
No required environment variables are declared in its published metadata.
›Can I use Zerosmtp as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is Zerosmtp in the official MCP registry?
Yes, as io.github.msgwing/zerosmtp.
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