MailInApp for Windsurf

com.mailinapp/mcp

Build and send interactive email campaigns: studio editing, contacts, sending, results.

client:Windsurf transport:streamable-http

Install MailInApp in Windsurf

~/.codeium/windsurf/mcp_config.json · windows: %USERPROFILE%\.codeium\windsurf\mcp_config.json

{
  "mcpServers": {
    "mcp": {
      "serverUrl": "https://mailinapp.com/api/mcp"
    }
  }
}

Global only — Windsurf has no per-project MCP config. Refresh Cascade after saving. Windsurf docs