The UNFCCC secretariat has developed an API (application programming interface) to allow third-party websites and apps to connect to the UN Carbon Offset Platform.
The API currently allows users to see all information associated to the projects and carbon credits (Certified Emission Reductions or CERs) available for sale on the platform. Purchase and cancellation of the credits is not yet possible through the API.
The current solution allows third parties to display the projects their users/clients can support thanks to their offsetting emissions, in collaboration with them and the UN Carbon Offset Platform.