List the MCP servers catalog

curl --request GET \
  --url https://agentgateway-admin.dev.neuraltrust.ai/v1/mcp-servers-catalog \
  --header 'Authorization: <api-key>'

{
  "mcp_servers": [
    {
      "auth_headers": [
        {
          "description": "<string>",
          "name": "<string>",
          "required": true,
          "scheme": "<string>",
          "secret": true
        }
      ],
      "auth_hint": "<string>",
      "category": "<string>",
      "code": "<string>",
      "description": "<string>",
      "display_name": "<string>",
      "metadata": {},
      "oauth": {
        "authorize_url": "<string>",
        "dcr": true,
        "pkce": true,
        "registration": "<string>",
        "required": true,
        "resource": "<string>",
        "resource_metadata": true,
        "scopes": [
          "<string>"
        ],
        "token_url": "<string>"
      },
      "relevance": 123,
      "requires_auth": true,
      "requires_config": true,
      "scopes": [
        "<string>"
      ],
      "source": "<string>",
      "tools": [
        {
          "description": "<string>",
          "name": "<string>"
        }
      ],
      "transport": "<string>",
      "url": "<string>",
      "url_variables": [
        {
          "description": "<string>",
          "in": "<string>",
          "name": "<string>",
          "required": true,
          "secret": true
        }
      ],
      "vendor": "<string>"
    }
  ]
}