/**
 * Keygen REST API client for React Buoy
 *
 * License validation + device registration for visibility.
 * No limits enforced - we trust our customers.
 */
import type { KeygenValidationResponse, KeygenMachineResponse, LicenseValidationResult } from "./types";
/**
 * Validate a license key with Keygen
 */
export declare function validateLicense(licenseKey: string): Promise<KeygenValidationResponse>;
/**
 * Activate a machine for a license (for visibility, not enforcement)
 */
export declare function activateMachine(licenseId: string, licenseKey: string, fingerprint: string, name: string, metadata?: Record<string, string>): Promise<KeygenMachineResponse>;
/**
 * Parse validation response into a simpler result
 * Note: response.data can be null when license is invalid (e.g., NOT_FOUND)
 */
export declare function parseValidationResult(response: KeygenValidationResponse): LicenseValidationResult;
/**
 * Check if a validation code indicates a fatal error (license invalid)
 */
export declare function isFatalLicenseError(code: string): boolean;
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