/**
 * Built-in web search MCP provider.
 *
 * Wraps multiple web search APIs behind a unified interface:
 *   - Tavily (default): requires TAVILY_API_KEY
 *   - Brave Search: requires BRAVE_SEARCH_API_KEY
 *   - Serper: requires SERPER_API_KEY
 *
 * Gracefully degrades when API key is missing (returns empty results with a notice).
 */
import type { McpSearchResult, BuiltinMcpProvider } from './types';
type WebSearchProvider = 'tavily' | 'brave' | 'serper';
export interface WebSearchMcp extends BuiltinMcpProvider {
    search(query: string, maxResults?: number): Promise<McpSearchResult[]>;
}
export declare function createWebSearchMcp(explicitProvider?: WebSearchProvider, explicitKey?: string): WebSearchMcp;
export {};
//# sourceMappingURL=websearch.d.ts.map