@n8n/n8n-nodes-langchain
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TypeScript
import { Client } from '@modelcontextprotocol/sdk/client/index.js';
import type { IExecuteFunctions, ILoadOptionsFunctions, INode, ISupplyDataFunctions, Result } from 'n8n-workflow';
import { NodeOperationError } from 'n8n-workflow';
import type { McpAuthenticationOption, McpServerTransport, McpTool } from './types';
export declare function getAllTools(client: Client, cursor?: string): Promise<McpTool[]>;
type OnUnauthorizedHandler = (headers?: Record<string, string>) => Promise<Record<string, string> | null>;
type ConnectMcpClientError = {
type: 'invalid_url';
error: Error;
} | {
type: 'connection';
error: Error;
} | {
type: 'auth';
error: Error;
};
export declare function mapToNodeOperationError(node: INode, error: ConnectMcpClientError): NodeOperationError;
export declare function connectMcpClient({ headers, serverTransport, endpointUrl, name, version, onUnauthorized, }: {
serverTransport: McpServerTransport;
endpointUrl: string;
headers?: Record<string, string>;
name: string;
version: number;
onUnauthorized?: OnUnauthorizedHandler;
}): Promise<Result<Client, ConnectMcpClientError>>;
export declare function getAuthHeaders(ctx: Pick<IExecuteFunctions, 'getCredentials'>, authentication: McpAuthenticationOption): Promise<{
headers?: Record<string, string>;
}>;
export declare function tryRefreshOAuth2Token(ctx: IExecuteFunctions | ISupplyDataFunctions | ILoadOptionsFunctions, authentication: McpAuthenticationOption, headers?: Record<string, string>): Promise<{
Authorization: string;
} | null>;
export declare function isStructuredContent(value: unknown): value is Record<string, unknown>;
export {};