Interfaces
We maintain geospatial datasets for purposes such as hydrographic surveying, waterway maintenance, as well as planning and development.
Web map services (WMS/WMTS)
- Open WMS Ulkoinen verkkopalvelu.
- Restricted WMS Ulkoinen verkkopalvelu.
- Please note the more limited licence Ulkoinen verkkopalvelu..
- S-57 View Service Ulkoinen verkkopalvelu.
- View service (WMTS) Ulkoinen verkkopalvelu.
Direct Access Download WFS/WCS
- Open WFS Ulkoinen verkkopalvelu.
- Restricted WFS Ulkoinen verkkopalvelu.
- Please note the more limited licence Ulkoinen verkkopalvelu..
Changes to licence terms for the hydrographic data interfaces
Traficom will revise the licence terms for its hydrographic data interfaces effective from 1 September 2026. The purpose of these changes is to clarify the terms of use.
The licence for the S-57 interface and the map service will be changed to the Limited Hydrographic Data Licence as of 1 September 2026.
The use of marine chart data for commercial purposes or navigation purposes requires a contractual agreement process.
For further information and data requests: copyright@traficom.fi
Key management of Spatial data services
In the key management of spatial data services you can manage the API keys of the organisation you represent. The keys are used for identification in the interfaces of Spatial data services. The use of interface services requires private individuals to register on behalf of a company. Logging in takes place by acting on behalf of the company with a Suomi.fi e-Authorization. API keys are valid for 12 months at a time, and a company may have up to 5 active API keys in use simultaneously.
The service contains offshore wind power data, the information is updated as project developers submit their data.