# babel-core > Babel compiler core. ## Install ``` $ npm install babel-core ``` ## Usage ```js import babel from 'babel-core'; const code = `class Example {}`; const result = babel.transform(code, { /* options */ }); result.code; // Generated code result.map; // Sourcemap result.ast; // AST ``` For more in depth documentation see: http://babeljs.io/docs/usage/api/