/**
 * @fileoverview Tests for API connections to verify API keys.
 *
 * This module provides tests to verify that the API keys provided in the
 * environment variables are valid and working correctly. It tests connections
 * to various AI APIs including Google Gemini, OpenRouter, and Anthropic.
 *
 * Key features:
 * - Tests connection to Google Gemini API
 * - Tests connection to OpenRouter API
 * - Tests connection to Anthropic API
 * - Provides detailed error messages for failed connections
 * - Can be run on startup to verify API keys
 */
/**
 * Test connection to Google Gemini API
 * @returns Promise resolving to a boolean indicating if the connection was successful
 */
export declare function testGeminiConnection(): Promise<{
    success: boolean;
    message: string;
}>;
/**
 * Test connection to Anthropic API
 * @returns Promise resolving to a boolean indicating if the connection was successful
 */
export declare function testAnthropicConnection(): Promise<{
    success: boolean;
    message: string;
}>;
/**
 * Test connection to OpenRouter API
 * @returns Promise resolving to a boolean indicating if the connection was successful
 */
export declare function testOpenRouterConnection(): Promise<{
    success: boolean;
    message: string;
}>;
/**
 * Test connection to OpenAI API
 * @returns Promise resolving to a boolean indicating if the connection was successful
 */
export declare function testOpenAIConnection(): Promise<{
    success: boolean;
    message: string;
}>;
/**
 * Run API connection tests
 */
export declare function runApiConnectionTests(): Promise<void>;