/**
 * CLI flag parsing for `x402-micro-tollgate` bin entry.
 * Kept side-effect free so tests can import without booting the server.
 */
export type CliOptions = {
    help: boolean;
    stdio: boolean;
    port?: string;
    /** EVM receive address → applied as `X402_PAY_TO` before server/MCP import. */
    seller?: string;
    /** True when `--seller` / `-s` was present but value was missing. */
    sellerMissingValue: boolean;
};
/**
 * Parse argv tokens (without `node` / script path).
 * Does not mutate env — call {@link applyCliEnv} after.
 */
export declare function parseCliArgs(args: string[]): CliOptions;
/**
 * Apply CLI overrides to env before dynamic-importing server / mcp-stdio.
 * Existing env vars are preserved unless an explicit flag overrides them.
 */
export declare function applyCliEnv(opts: Pick<CliOptions, "port" | "seller">, env?: NodeJS.ProcessEnv): void;