import { OpenAICompatibleModelProvider } from './model.js';
/**
 * Default base URL for Vercel AI Gateway's OpenAI-compatible Chat Completions
 * endpoint. The gateway accepts the standard OpenAI request body and routes
 * through to the configured provider; switching from OpenAI to the gateway
 * is just a base-URL change.
 *
 * See https://vercel.com/docs/ai-gateway/sdks-and-apis/openai-compat
 */
export declare const VERCEL_AI_GATEWAY_BASE_URL = "https://ai-gateway.vercel.sh/v1";
export interface VercelAIGatewayProviderOptions {
    /**
     * AI Gateway API key. From the Vercel dashboard, or pass an OIDC token if
     * you've configured workload identity. Forwarded as `Authorization: Bearer`.
     */
    apiKey: string;
    /**
     * Default model id (e.g. `anthropic/claude-3-5-sonnet-20241022`,
     * `openai/gpt-4o`). Used when `init({ model: ... })` isn't set per-call.
     */
    defaultModel?: string;
    /**
     * Override the gateway base URL. Default is the production gateway
     * (`https://ai-gateway.vercel.sh/v1`). Override for staging or self-hosted.
     */
    baseUrl?: string;
    /** Optional name override for telemetry. Defaults to `vercel-ai-gateway`. */
    name?: string;
    /** Extra headers (e.g. team scoping, observability tags). */
    headers?: Record<string, string>;
}
/**
 * Vercel AI Gateway model provider.
 *
 * The gateway is an OpenAI-compatible HTTP endpoint that brokers between
 * your agent and any of the major model providers (OpenAI, Anthropic,
 * Google, xAI, Groq, etc.) with a single key, observability, caching, and
 * spend controls. Use this provider on any deploy target — Node, Cloudflare
 * Workers, Vercel — to route inference through the gateway.
 *
 * ```ts
 * import { vercelAIGateway, init } from '@fabric-harness/sdk';
 *
 * const fabric = await init({
 *   modelProvider: vercelAIGateway({
 *     apiKey: process.env.AI_GATEWAY_API_KEY!,
 *     defaultModel: 'anthropic/claude-3-5-sonnet-20241022',
 *   }),
 * });
 * ```
 *
 * Returns an {@link OpenAICompatibleModelProvider} configured for the gateway
 * — use it anywhere a `ModelProvider` is accepted. Compatible with
 * fabric-harness's tool-calling, retries, and timeout semantics.
 */
export declare function vercelAIGateway(options: VercelAIGatewayProviderOptions): OpenAICompatibleModelProvider;
//# sourceMappingURL=vercel-ai-gateway.d.ts.map