export interface SearchResult {
    title: string;
    url: string;
    snippet: string;
    source: string;
}
export declare class WebSearchEngine {
    private static userAgent;
    /**
     * Autonomous Multi-Provider Web Search (Zero API Key required)
     */
    static search(query: string, maxResults?: number): Promise<SearchResult[]>;
    /**
     * DuckDuckGo HTML Search Scraper (Free, No API Key)
     */
    private static searchDuckDuckGo;
    /**
     * DuckDuckGo Lite Search (Fast fallback, No API Key)
     */
    private static searchDuckDuckGoLite;
    /**
     * Public SearXNG Instances (JSON API, No Key)
     */
    private static searchSearXNG;
    private static stripHtml;
}
//# sourceMappingURL=search.d.ts.map