The low-cost-airline said it hoped the decision would go some way to cracking down on “unauthorised selling” of fares.
The move follows the low-cost carrier’s decision last year to provide an API to the corporate travel system through Amadeus.
Customers of Multicom’s FindAndBook platform – including online travel agencies and other websites – will be able to access the feed through their own plug-in systems.
EasyJet’s decision to open its XML feed to leisure travel companies has been mooted regularly since late last year amid speculation that its consumer-direct model is coming under pressure from third parties.
Distribution development manager Jerry Dunn said: “For the first time, EasyJet is working with third party system providers as we move away from unlicensed screen scraping and towards building solid partnerships with clear benefits for both parties.
“We are hopeful that other providers will follow Multicom’s lead and avoid any unauthorised selling of EasyJet flights.”