/**
 * Known x402 endpoints registry
 * Endpoints from x402.biwas.xyz, x402.aibtc.com, stx402.com, and aibtc.com
 */
export type X402Source = "x402.biwas.xyz" | "x402.aibtc.com" | "stx402.com" | "aibtc.com";
export interface X402Endpoint {
    path: string;
    method: "GET" | "POST" | "PUT" | "DELETE";
    description: string;
    cost: string;
    category: string;
    source: X402Source;
    params?: Record<string, string>;
    body?: Record<string, string>;
}
export declare const ALL_ENDPOINTS: X402Endpoint[];
/**
 * Search endpoints by keyword
 */
export declare function searchEndpoints(query: string): X402Endpoint[];
/**
 * Get endpoints by source
 */
export declare function getEndpointsBySource(source: X402Source): X402Endpoint[];
/**
 * Format endpoints for display
 */
export declare function formatEndpointsTable(endpoints: X402Endpoint[]): string;
/**
 * Get all unique categories
 */
export declare function getCategories(): string[];
/**
 * Lookup an endpoint in the registry by method, path, and source URL.
 * Used to determine if an endpoint is known-FREE or known-PAID before
 * deciding whether to use a payment-capable client.
 *
 * Supports path patterns with placeholders like {address}, {messageId}, etc.
 */
export declare function lookupEndpoint(method: string, path: string, sourceUrl: string): X402Endpoint | undefined;
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