/**
 * IAIndexClient - For AI clients to access content and send usage receipts
 */
import { ClientOptions, ContentMetadata, UsageInfo } from './types';
export declare class IAIndexClient {
    private apiClient;
    private clientId;
    private privateKey;
    private publicKey;
    private name?;
    private organization?;
    private initialized;
    constructor(options: ClientOptions);
    /**
     * Initialize client and authenticate with API
     */
    initialize(): Promise<void>;
    /**
     * Access content and retrieve metadata
     */
    accessContent(url: string): Promise<ContentMetadata>;
    /**
     * Extract metadata from HTML content
     */
    private extractMetadata;
    /**
     * Send usage receipt for accessed content
     */
    sendReceipt(content: ContentMetadata, usage: UsageInfo): Promise<boolean>;
    /**
     * Validate usage information
     */
    private validateUsage;
    /**
     * Create usage receipt
     */
    private createUsageReceipt;
    /**
     * Submit receipt to API
     */
    private submitReceipt;
    /**
     * Get verified publishers
     */
    getVerifiedPublishers(): Promise<any[]>;
    /**
     * Get client ID
     */
    getClientId(): string;
    /**
     * Get public key
     */
    getPublicKey(): string;
}
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