/**
 * Credits context provider for MCP paywall.
 * This class does not "calculate" credits, it builds the context
 * and resolves the configured credit policy.
 */
import { CreditsOption, AuthResult } from '../types/paywall.types.js';
/**
 * Provide credits using fixed value or a function receiving contextual information.
 */
export declare class CreditsContextProvider {
    /**
     * Resolve the credits to redeem based on the provided option.
     * @param creditsOption - Credits configuration (fixed bigint or function).
     * @param args - Original handler arguments.
     * @param result - Handler result.
     * @param authResult - Authentication result with request metadata.
     * @returns Credits to redeem as bigint. Defaults to 1n when option is not provided.
     */
    resolve(creditsOption: CreditsOption | undefined, args: any, result: any, authResult: AuthResult): bigint;
    /**
     * Extract tool name from a logical MCP URL.
     * Falls back to 'tool' for HTTP endpoints or invalid URLs.
     * @param logicalUrl - Logical URL string (mcp:// or http://).
     * @returns Tool name derived from the URL path, or 'tool' as fallback.
     */
    private extractToolNameFromUrl;
}
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