About this API
dados.gov.pt is Portugal's national open-data portal, run by the Agency for the Technological Reform of the State (ARTE). It is built on the open-source udata platform and aggregates thousands of datasets published by central government, agencies and local authorities — from environmental and statistical data to budgets and municipal registers. The udata API (version /api/1) provides unified, public REST/JSON access to dataset metadata: titles, descriptions, the publishing organisation, licence, update frequency and file formats, together with links to the resources themselves; it also supports full-text search (the q parameter) and pagination. Licensing is set per dataset — the portal recommends CC BY 4.0 or CC0 1.0. Access is free and requires no key or registration.
Frequently asked questions
Do I need an API key?
No. The portal is fully public — no registration and no API key.
What data does this API return?
Dataset metadata: title, description, the publishing organisation, licence, update frequency and file formats, plus links to the resources themselves. The actual content depends on what each body has published — from environmental and statistical data to municipal budgets and registers.
Can this API be called directly from a browser?
No. The API does not return a CORS header (Access-Control-Allow-Origin), so it cannot be called directly from front-end browser code — it must be called server-side. That is why there is no live "Try it" button here.
Who runs this API?
The Agency for the Technological Reform of the State (ARTE), Government of Portugal. Full API documentation (uData) is available at dados.gov.pt/api/1/.