Check out AppMap's latest Code-First OpenAPI auto-documentation which can generate OpenAPI compatable documentation from your runtime code behavior.
https://appmap.io/product/automate-op...
https://appmap.io/docs/your-first-15-...
In this video, we demo how to automatically generate Swagger docs directly from your application’s test cases, so your docs are always up-to-date. For more info, check out our blog post on the topic: https://appland.com/blog/2021/06/08/r...