/**
 * Tavily login flow.
 *
 * Tavily web search uses an API key from the account settings page.
 * This is an API key flow:
 * 1. Open browser to Tavily settings
 * 2. User copies API key
 * 3. User pastes key into CLI
 */
import type { OAuthController } from "./types";
/**
 * Login to Tavily.
 *
 * Opens browser to API keys page and prompts user to paste their API key.
 * Returns the API key directly (not OAuthCredentials - this isn't OAuth).
 */
export declare function loginTavily(options: OAuthController): Promise<string>;