OpenAPI editors

https://openapi.tools/#gui-editors

Stoplight: free for 3 users.

SwaggerHub: 14 day trial, SwaggerEditor

https://mermade.github.io/openapi-gui/ (Local storage only)

https://www.apibldr.com/ (Local storage only)

VS-Code: https://marketplace.visualstudio.com/items?itemName=42Crunch.vscode-openapi

For testing:

Postman

SSH Host key changed: Reset

ssh-keygen -R <dev server host name> & enter yes

Alternative is to go to ~/.ssh/known_hosts & delete the old key.