interface ApiKeyValidationResult {
    isValid: boolean | null;
    validationError: string | null;
    dailyScanLimit: number;
    isLoading: boolean;
    keyData: {
        tier: string;
        domain: string | null;
        scansUsedToday: number;
    } | null;
}
export declare const useApiKeyValidation: (apiKey?: string, enableHeartbeat?: boolean, validationEndpoint?: string, heartbeatEndpoint?: string) => ApiKeyValidationResult;
export {};