MailInApp for VS Code

com.mailinapp/mcp

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

client:VS Code transport:streamable-http

Install MailInApp in VS Code

.vscode/mcp.json

{
  "servers": {
    "mcp": {
      "type": "http",
      "url": "https://mailinapp.com/api/mcp"
    }
  }
}

Requires agent mode. MCP: Open User Configuration puts the same block in every workspace. VS Code docs