That's very different from the Stripe example, as opening a service like Openrouter isn't illegal, so that's only coming from it being opinionated, nothing to do with the law. And my example was for not so specific use cases but quite general one which is just to open let say a service like Opencode Zen and use Openrouter as a backend, this is explicity forbidden by Openrouter and it isn't against the law, that's not just a "niche use case".

Are we allowed yes or not to make a service that charge per Token to end-users, like giving access to Kimi K2.5 to end-users through Openrouter in a pay per token basis?