import { O as OpenRouterClient } from '../index-DMpnd7bA.js';
import '../api-DL1ztBmF.js';
import '../pricing-BUJAtUlg.js';
import 'eventemitter3';
import '../routing-C4EW-wyV.js';
import '../ModelCatalog-BcfW6bZr.js';
import '../ModelSelector-DRt9Wz6J.js';
import '../logger-DUq4P1BF.js';
import '../CostTracker-_TwTsEdz.js';

declare class ExpressAdapter {
    private client;
    constructor(client: OpenRouterClient);
    /**
     * Middleware for chat completion
     */
    chatMiddleware(): (req: any, res: any, next: any) => Promise<any>;
    /**
     * Middleware for streaming chat completion
     */
    streamMiddleware(): (req: any, res: any, next: any) => Promise<any>;
    /**
     * Middleware for listing models
     */
    modelsMiddleware(): (_req: any, res: any, next: any) => void;
    /**
     * Middleware for getting cost summary
     */
    costsMiddleware(): (req: any, res: any, next: any) => void;
    /**
     * Error handling middleware
     */
    errorMiddleware(): (error: any, _req: any, res: any, _next: any) => void;
    /**
     * Setup complete Express router
     */
    setupRouter(router: any): any;
}
/**
 * Factory function for Express integration
 */
declare function createExpressAdapter(client: OpenRouterClient): ExpressAdapter;

export { ExpressAdapter, createExpressAdapter };