openapi: 3.1.0
info:
  title: EU Open Data Portal Search Catalogs API
  description: The EU Open Data Portal Search API (data.europa.eu) provides REST access for discovering, searching, and querying European Union open datasets. The API follows DCAT-AP metadata standards and supports discovery of datasets from EU institutions, member state portals, and federated open data sources. No authentication required.
  version: 1.0.0
  contact:
    name: EU Open Data Portal Support
    url: https://data.europa.eu/en/contact
  license:
    name: Creative Commons Attribution 4.0
    url: https://creativecommons.org/licenses/by/4.0/
servers:
- url: https://data.europa.eu/api/hub/search
  description: EU Open Data Portal Search API
tags:
- name: Catalogs
  description: Federated data catalogs and publishers
paths:
  /catalogs:
    get:
      operationId: listCatalogs
      summary: List federated catalogs
      description: Returns the list of data catalogs federated by the EU Open Data Portal including member state portals and institutional catalogs.
      tags:
      - Catalogs
      parameters:
      - name: q
        in: query
        schema:
          type: string
      - name: page
        in: query
        schema:
          type: integer
          default: 1
      - name: limit
        in: query
        schema:
          type: integer
          default: 20
      responses:
        '200':
          description: Catalog list returned
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CatalogListResponse'
components:
  schemas:
    Catalog:
      type: object
      properties:
        id:
          type: string
        title:
          type: object
          additionalProperties:
            type: string
        homepage:
          type: string
          format: uri
        country:
          type: string
        datasetCount:
          type: integer
        lastHarvested:
          type: string
          format: date-time
    CatalogListResponse:
      type: object
      properties:
        success:
          type: boolean
        result:
          type: object
          properties:
            count:
              type: integer
            results:
              type: array
              items:
                $ref: '#/components/schemas/Catalog'
externalDocs:
  description: EU Data Provider Manual
  url: https://dataeuropa.gitlab.io/data-provider-manual/