export interface Config {
    AUTH_URL: string;
    CALLBACK_URL: string;
    BASE_URL: string;
}
export interface ConfigWithApiKey extends Config {
    FIREBASE_API_KEY: string;
}
/**
 * Get static config (URLs only, no API key)
 */
export declare function getConfig(options?: {
    staging?: boolean;
}): Config;
/**
 * Fetch Firebase API key from the web app's public endpoint.
 * This avoids hardcoding API keys in source code.
 * Falls back to environment variables if fetch fails.
 */
export declare function fetchFirebaseApiKey(options?: {
    staging?: boolean;
}): Promise<string>;