PayPal is extending its One Touch payments service, which enables users to buy goods online without entering their username and password with each transaction, to 13 new markets, predominately in Western Europe.

The service, which first launched a year ago, is already available in the US, UK and Canada. Its expansion was the subject of a blog by Bill Ready (pictured), the company’s global head of merchant and next-generation commerce.

The One Touch service works on mobile, tablet and PC. “Millions” of users have already opted in to the service, Ready said.

PayPal is locked in a battle with rival services, such as Visa Checkout, for the hearts and minds of retailers and consumers.

One Touch’s new markets are Australia, Austria, Belgium, Denmark, France, Germany, Netherlands, Norway, Poland, Spain, Sweden, Switzerland and Turkey.

Merchants in these markets that already accept PayPal have One Touch automatically enabled, he said.

The service is also available to 100 per cent of eligible consumers in the US, and half of the world’s top 100 online retailers have backed it too, Ready added.

Consumers who opt-in to One Touch can checkout across all eligible merchants without needing to enter a username, password or payment information each time they make an online purchase, so long as they are using the same device. Consumers must have a PayPal account to checkout with One Touch.