The ECMWF Public Datasets Service is being decommissioned and access to most datasets closed on 1 June 2023. In a final step later this year, access to the remaining multi-model datasets S2S and TIGGE will be migrated to a different system. For more information and possible alternatives, please consult the dedicated page on Decommissioning of ECMWF Public Datasets service.

What is ECMWF Web API

ECMWF WebAPI is a set of services developed by ECMWF to allow users from the outside to access some internal features and data of the centre. 

In this page you will find explanations, guides and examples showing how to use the different ECMWF WebAPI services.

This external access is limited and managed by the User Profile access (Member State, Commercial customers, ECMWF staff member...). Some of these services are public and some other are restricted to the Archive Access.


Type of userWebBatch download
Authorized userMARS catalogue (Authorization required, browse and download)Access MARS
Commercial user

Archive catalogue (Only browse)

MARS catalogue (Authorization required, browse and download)

Access MARS
Public userPublic DatasetsAccess ECMWF Public Datasets



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