type OpenAICompatibleValidationOptions = {
    provider: string;
    apiKey: string;
    baseUrl: string;
    model: string;
    signal?: AbortSignal;
    fetch?: typeof globalThis.fetch;
    requireInferenceResponse?: boolean;
    timeoutMs?: number;
};
type ModelListValidationOptions = {
    provider: string;
    apiKey: string;
    modelsUrl: string;
    signal?: AbortSignal;
    fetch?: typeof globalThis.fetch;
    timeoutMs?: number;
};
/**
 * Validate an API key against an OpenAI-compatible chat completions endpoint.
 *
 * Performs a minimal request to verify credentials and endpoint access.
 */
export declare function validateOpenAICompatibleApiKey(options: OpenAICompatibleValidationOptions): Promise<void>;
/**
 * Validate a provider models endpoint's reachability and response shape.
 *
 * Useful for providers where access to specific models may vary by plan and
 * should not block login; an available model list is not proof that an
 * authenticated inference request will succeed for the supplied key.
 *
 * A 200 status alone is NOT accepted: a captive portal, misrouting proxy, or
 * broken gateway can answer 200 with an HTML page or an empty JSON object.
 * The body must parse as JSON and carry a recognizable model list before the
 * endpoint is considered reachable. This catalog check is not proof that
 * authenticated inference is entitled to use the supplied key.
 */
export declare function validateApiKeyAgainstModelsEndpoint(options: ModelListValidationOptions): Promise<void>;
export {};