@babel/core

@babel/cli, @babel/register, @babel/node, and several other packages all depend on @babel/core, which as its name implies contains the core logic behind Babel. In addition, the @babel/core package exposes API methods that you can use inside your code:

import * as babel from '@babel/core';
var result = babel.transform("code();", options);
result.code;
result.map;
result.ast;