Werk #19883: Swagger UI: Fix yaml download

Component

REST API

Title

Swagger UI: Fix yaml download

Date

Jun 12, 2026

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

3.0.0b1 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

Downloading the OpenAPI specification in YAML format (openapi-swagger-ui.yaml) from the REST API Swagger UI returned HTTP 404.

The download link for the YAML specification is accessible via Help > REST API > Version 1 Interactive GUI. The route for this file was missing from the versioned API registration, causing the 404 response.

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