Copernicus Marine CSW Catalogue API
The Copernicus Marine Catalogue Service for the Web (CSW) provides OGC-compliant metadata discovery over the full product catalogue. It supports GetCapabilities, DescribeRecord, GetRecords (search and filter catalogue entries), and GetRecordById (retrieve a specific product record by identifier). The service is based on CSW 2.0.2 and uses ISO 19115 metadata records. No authentication or Copernicus Marine account is required, and there are no documented rate limits or quotas for the catalogue service.