API Guide

Complete guides for authentication, data discovery, and data access with practical examples.

Interactive API Explorer: Live Documentation - Test endpoints directly in your browser with authentication playground and real-time responses.

Authentication & Quotas

Set up authentication with OAuth2, manage tokens, understand roles, quotas and rate limits

Required for data access

Services & Data Discovery

Discover services, browse collections, search datasets, and use queryables

Start exploring data

Data Access

Download data, order ECMWF datasets, and load data into xarray

Get your data

• Authentication & Quotas
  • Authentication Overview
  • Quotas & Rate Limits
  • Authentication Methods
  • Token Management
  • Access Patterns
  • References
  • Next Steps
• Data Discovery
  • Overview
  • Reference info
  • Services Discovery
  • Datasets Discovery
  • Searching for Data
  • Next Steps
• Data Access
  • Overview
  • Prerequisite info
  • Download data
  • Ordering and downloading ECMWF data
  • Load data to xarray
  • Next Steps