MercadoPago Checkout Pro Integration Installation You'll first need to clone the repo, then install the dependencies: npm install Next, get token and public_key from https://mercadopago.com/developers: TEST_ACCESS_TOKEN= NEXT_PUBLIC_MERCADOPAGO_KEY= Run the app: npm run dev Docs Mercadopago Checkout Pro Docs. GitHub checkout payment example repo. DEV article by @NicolasCastroGarcia (spanish).