Swiss Parliament Open Data Webservice (OWS) - Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[1.0.0] - 2026-10-28

Initial release of the Swiss Parliament Open Data Webservice (OWS).

Added

• Read-only REST API for the data of the Swiss Parliament, served under /api (and the versioned alias /api/v1).
• Resources:
  • Persons and groups: /api/persons, /api/groups
  • Businesses: /api/businesses, /api/businessTypes, /api/businessStatus, /api/topics
  • Sessions and council meetings: /api/legislatures, /api/sessions, /api/councilMeetings, /api/councilMinutes, /api/councilStatements
  • Votes and seating: /api/votes-nc, /api/votes-cs, /api/votings-nc, /api/votings-cs, /api/seats-nc, /api/seats-cs
  • Reference data: /api/masterData, /api/cantons, /api/councils, /api/departments, /api/elections
  • Other: /api/mutations, /api/info
• Paginated list endpoints with filtering (?q=), sorting (?sort=) and field selection (?include= / ?exclude=).
• Multilingual content (German, French, Italian), selected by the request language.
• Interactive API documentation via Swagger UI.