Requiring the info terms of service property meets the policy standards.
Terms of Service for APIs
Rules
OpenAPI Info Terms Of Service Error
You need a terms of service associated with an OpenAPI using the info terms of service property so that the legal aspects of legal side of the API always travel with the technical contract for an API
OpenAPI Info Terms Of Service Info
You need a terms of service associated with an OpenAPI using the info terms of service property so that the legal aspects of legal side of the API always travel with the technical contract for an API
Strategies
API Info and Metadata Is Complete and Accurate
The info object in your OpenAPI definition is the first thing both humans and machines encounter, and I am constantly surprised by how often it is incomplete. Title, description, version, contact, ...