import type { ProviderFactory, ProviderAdapter } from '../types.js';
/**
 * OpenRouter — single-API access to dozens of models with automatic fallback
 * and cost optimization. The API is OpenAI-compatible, so we reuse the
 * `OpenAIAdapter` with a different base URL.
 *
 * Models follow OpenRouter's naming, e.g.
 *   `openrouter/anthropic/claude-3.5-sonnet`
 *   `openrouter/openai/gpt-4o`
 *   `openrouter/meta-llama/llama-3.3-70b-instruct`
 *
 * @example
 * ```ts
 * // config/ai.ts
 * providers: {
 *   openrouter: {
 *     apiKey: env('OPENROUTER_API_KEY'),
 *     siteUrl: 'https://myapp.com',     // optional — sent as HTTP-Referer
 *     siteName: 'My App',               // optional — sent as X-Title
 *   },
 * }
 * ```
 */
export interface OpenRouterConfig {
    apiKey: string;
    baseUrl?: string | undefined;
    /**
     * Origin of your app — sent as `HTTP-Referer`. OpenRouter shows this on
     * their leaderboard / per-app analytics. Optional but recommended.
     */
    siteUrl?: string | undefined;
    /**
     * Display name of your app — sent as `X-Title`. Optional but recommended.
     */
    siteName?: string | undefined;
}
export declare class OpenRouterProvider implements ProviderFactory {
    readonly name = "openrouter";
    private readonly config;
    constructor(config: OpenRouterConfig);
    create(model: string): ProviderAdapter;
}
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