I have been working on an Alexa skill that I plan to offer for free. This Alexa skill will have users log in and then map their IP address and API key to their profile. Alexa will then use this information to fire off API requests to their OctoPrint setup. I have not decided on a name for the skill yet, but would likely want to use the word OctoPrint in the name. The FAQ on the trademark page looks like I should be allowed to use it for a free app, but the following line makes me weary:
The OctoPrint brand name may not be used:
a) To give the false impression that a product or service is supported by or in any way associated with OctoPrint or Gina Häußge.