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mcp/harbor
Cline

MailSnail for Cline

io.github.iancollins27/mailsnail

Send USPS letters & certified mail from any agent. Hosted: sign in, no install.

client:Cline transport:streamable-http runtime:npm

Install MailSnail in Cline

~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json · windows: %APPDATA%\Code\User\globalStorage\saoudrizwan.claude-dev\settings\cline_mcp_settings.json 

{
  "mcpServers": {
    "mailsnail": {
      "url": "https://api.mailsnail.dev/mcp"
    }
  }
}

Cline's MCP Servers pane edits this file for you if you would rather not find it. Cline docs

MailSnail in other clients

MailSnail MCP server