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packages/@n8n/nodes-langchain/nodes/mcp/shared/descriptions.ts

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+import type { IDisplayOptions, INodeCredentialDescription, INodeProperties } from 'n8n-workflow';
+
+export const transportSelect = ({
+	defaultOption,
+	displayOptions,
+}: {
+	defaultOption: 'sse' | 'httpStreamable';
+	displayOptions?: IDisplayOptions;
+}): INodeProperties => ({
+	displayName: 'Server Transport',
+	name: 'serverTransport',
+	type: 'options',
+	options: [
+		{
+			name: 'HTTP Streamable',
+			value: 'httpStreamable',
+		},
+		{
+			name: 'Server Sent Events (Deprecated)',
+			value: 'sse',
+		},
+	],
+	default: defaultOption,
+	description: 'The transport used by your endpoint',
+	displayOptions,
+});
+
+export const credentials: INodeCredentialDescription[] = [
+	{
+		name: 'httpBearerAuth',
+		required: true,
+		displayOptions: {
+			show: {
+				authentication: ['bearerAuth'],
+			},
+		},
+	},
+	{
+		name: 'httpHeaderAuth',
+		required: true,
+		displayOptions: {
+			show: {
+				authentication: ['headerAuth'],
+			},
+		},
+	},
+	{
+		name: 'mcpOAuth2Api',
+		required: true,
+		displayOptions: {
+			show: {
+				authentication: ['mcpOAuth2Api'],
+			},
+		},
+	},
+	{
+		name: 'httpMultipleHeadersAuth',
+		required: true,
+		displayOptions: {
+			show: {
+				authentication: ['multipleHeadersAuth'],
+			},
+		},
+	},
+];