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Remote MCP Server Endpoint (Streamable HTTP)

https://mailing-engineer.com/mcp

🔒 OAuth 2.1 + PKCE (S256) — Sign in with your Mailing Engineer account on first connect (100% Multi-Tenant Isolated).

Open Claude Settings › Customize › Connectors.
Click Add custom connector.
Name: Mailing Engineer • Remote MCP server URL: https://mailing-engineer.com/mcp
Click Add, then click Connect and sign in with your Mailing Engineer account.
In any Claude chat, enable Mailing Engineer from the tools menu and ask: "Show my campaign stats and generate a 4-product newsletter from my store!"

Note: Custom MCP connectors require ChatGPT Plus, Pro, Business, or Enterprise with Developer Mode enabled.

Open chatgpt.com › Profile › Settings.
Go to Security / Connectors and enable Developer mode.
Click New Connector / Add MCP Server.
Name: Mailing Engineer • Server URL (Streamable HTTP): https://mailing-engineer.com/mcp
Authentication: OAuth. Click Create and sign in with your Mailing Engineer credentials.

Add this block to .cursor/mcp.json, .mcp.json (Claude Code), or .vscode/mcp.json:

{
  "mcpServers": {
    "mailing-engineer": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://mailing-engineer.com/mcp",
        "--static-oauth-client-metadata",
        "{\"scope\":\"read write\"}"
      ]
    }
  }
}

openclaw mcp add mailing-engineer \
  --url https://mailing-engineer.com/mcp \
  --transport streamable-http \
  --auth oauth \
  --oauth-scope "read write"

openclaw mcp login mailing-engineer

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