/**
 * Claude (Anthropic) Provider Implementation
 * Uses the Anthropic Messages API directly with web search support
 *
 * Authentication:
 * - ANTHROPIC_API_KEY environment variable
 * - CLAUDE_API_KEY environment variable (alias)
 * - apiKey option in constructor
 *
 * Web Search:
 * - Uses the web_search_20250305 tool type
 * - Enabled via enableWebGrounding option
 *
 * API Reference: https://docs.anthropic.com/en/api/messages
 */
import type { LLMProvider, ProviderName, Message, GenerateOptions, GenerateResponse } from './types.js';
/**
 * Claude (Anthropic) LLM Provider
 *
 * Supports authentication via:
 * 1. ANTHROPIC_API_KEY environment variable
 * 2. CLAUDE_API_KEY environment variable (alias)
 * 3. apiKey option in constructor
 *
 * Web search is supported via the web_search_20250305 tool.
 */
export declare class ClaudeProvider implements LLMProvider {
    readonly name: ProviderName;
    private apiKey;
    private defaultModel;
    constructor(options?: {
        /** Anthropic API key */
        apiKey?: string;
        /** Default model to use */
        defaultModel?: string;
    });
    generate(prompt: string, options?: GenerateOptions): Promise<GenerateResponse>;
    generateConversation(messages: Message[], options?: GenerateOptions): Promise<GenerateResponse>;
    supportsWebGrounding(): boolean;
    getGroundingModel(): string;
    testConnection(): Promise<boolean>;
}
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