/**
 * Anthropic LLM Provider
 *
 * Provider for Anthropic API (https://api.anthropic.com).
 * Supports Claude 3.5 Sonnet, Claude 3 Opus, and Claude 3 Haiku.
 *
 * Environment variables:
 * - ANTHROPIC_API_KEY: Required API key
 * - ANTHROPIC_BASE_URL: Optional base URL (default: https://api.anthropic.com)
 * - ANTHROPIC_MODEL: Model to use (default: claude-3-5-sonnet-20241022)
 */
import type { LLMProvider, GenerationRequest, GenerationResponse } from './index.js';
export interface AnthropicConfig {
    apiKey?: string;
    baseURL?: string;
    model?: string;
    timeout?: number;
}
export declare class AnthropicProvider implements LLMProvider {
    name: string;
    models: string[];
    private readonly apiKey;
    private readonly baseURL;
    private readonly defaultModel;
    private readonly timeout;
    private readonly version;
    constructor(config?: AnthropicConfig);
    isAvailable(): Promise<boolean>;
    generate(request: GenerationRequest): Promise<GenerationResponse>;
    stream(request: GenerationRequest): AsyncIterable<string>;
    countTokens(text: string): number;
    private buildMessages;
    private extractContent;
}
/**
 * Anthropic-specific error
 */
export declare class AnthropicError extends Error {
    code: string;
    details?: Record<string, unknown>;
    constructor(message: string, details?: Record<string, unknown>);
}
/**
 * Create Anthropic provider with default settings
 */
export declare function createAnthropicProvider(config?: AnthropicConfig): AnthropicProvider;
/**
 * Check if Anthropic is available and configured
 */
export declare function checkAnthropicSetup(): Promise<boolean>;