/**
 * Streamable HTTP transport entry point ("Method 2", MCP spec 2026-07-28).
 *
 * Serves the same server graph as stdio over HTTP using the SDK v2 node
 * adapter's `NodeStreamableHTTPServerTransport` in stateless mode. Security:
 *   • DNS-rebinding protection via `Host` header validation.
 *   • Bearer-token auth (env `EMAIL_MCP_HTTP_TOKEN` or `--token`).
 *   • Refuses to bind a non-loopback interface without a token (use
 *     `--insecure` to override, e.g. when TLS + auth is terminated upstream).
 *
 * Run:  email-mcp http --port 8080            → http://127.0.0.1:8080/mcp
 *       email-mcp http --host 0.0.0.0 --port 8080 --token "$SECRET"
 */
import type { ServerConfig } from '../types/index.js';
export interface HttpOptions {
    host: string;
    port: number;
    path: string;
    token?: string;
    allowedHosts: string[];
    insecure: boolean;
}
/**
 * Resolve `http` options with the layered precedence:
 * CLI flags → EMAIL_MCP_HTTP_* env → [settings.server] → built-in defaults.
 */
export declare function parseOptions(argv: string[], env?: Record<string, string | undefined>, serverConfig?: ServerConfig): HttpOptions;
export default function runHttp(argv: string[]): Promise<void>;
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