import type { MiddlewareHandler } from "./types.js";
/**
 * Rate limit configuration
 */
export interface RateLimitConfig {
    /** Enable rate limiting */
    enabled: boolean;
    /** Global IP rate: requests per minute */
    globalIpLimit: number;
    /** Authenticated client rate: requests per minute */
    clientLimit: number;
    /** Authenticated client burst capacity */
    clientBurst: number;
    /** Pairing endpoint rate: requests per 5 minutes per IP */
    pairLimit: number;
    /** MCP endpoint rate: requests per minute per session */
    mcpLimit: number;
    /** Cleanup interval for stale entries (ms) */
    cleanupInterval: number;
}
/**
 * Rate limiter middleware
 * Implements hybrid token bucket + sliding window approach
 */
export declare function rateLimiter(config?: Partial<RateLimitConfig>): MiddlewareHandler;