Add the Postmark MCP server to VS Code

Prerequisites

• VS Code installed.
• POSTMARK_SERVER_TOKEN — Your Postmark server API token.
• DEFAULT_SENDER_EMAIL — Default verified sender email address.
• DEFAULT_MESSAGE_STREAM — Postmark message stream to send through (e.g., 'outbound').

Setup

{
  "servers": {
    "postmark": {
      "type": "stdio",
      "command": "node",
      "args": [
        "/path/to/postmark-mcp/index.js"
      ],
      "env": {
        "POSTMARK_SERVER_TOKEN": "<POSTMARK_SERVER_TOKEN>",
        "DEFAULT_SENDER_EMAIL": "<DEFAULT_SENDER_EMAIL>",
        "DEFAULT_MESSAGE_STREAM": "<DEFAULT_MESSAGE_STREAM>"
      }
    }
  }
}

Gotchas

• VS Code uses the `servers` key (not `mcpServers`) and requires `type`.

VS Code is the exception to every other client: its top-level key is "servers", not "mcpServers", and each entry needs an explicit "type" (for example "http" or "stdio"). Secrets are not inlined; instead you declare an "inputs" array and reference each value as ${input:id}, so VS Code prompts for it once and never writes it to disk. Remote servers connect natively with OAuth.