type JsonRpcRequest = {
    jsonrpc: '2.0';
    id: number | string;
    method: string;
    params?: Record<string, any>;
};
type JsonRpcResponse<T = any> = {
    jsonrpc: '2.0';
    id: number | string | null;
    result?: T;
    error?: {
        code: number;
        message: string;
        data?: any;
    };
};
type McpClient = {
    callTool<T = unknown>(name: string, args?: Record<string, any>): Promise<T>;
    readResource<T = unknown>(uri: string): Promise<T>;
    close(): Promise<void>;
};
declare function createMcpClient(opts: {
    baseUrl: string;
    fetchImpl?: (input: any, init?: any) => Promise<Response>;
    headers?: Record<string, string>;
}): McpClient;

export { type JsonRpcRequest, type JsonRpcResponse, type McpClient, createMcpClient };