[pm24601]

I "love" clause 6D:

"You agree that you will not, and will not assist or enable others to: use the API on behalf of any third party;"

So in other words, no one can use the API except to get Yelp information about themselves.

What a fucking joke.

[dtsingletary]

The spirit of that is most likely: "You won't resell or grant your access to the API to other people, or allow someone else to to resell or grant access to the API."

Not generally the content you're getting from the API (although you wouldn't be selling or providing that to others, either, you'd be creating some derivative of it).

[pm24601]

Well that may be YOUR spirit but for YELP'S spirit I have to rely on the language in the TOS.

I say this as a developer building a product in which yelp's reviews are directly useful.

[dtsingletary]

Which is why it behooves you to contact them and get clarification, exception, etc. The same rules don't apply to everyone equally if you can make the right case. Simply displaying their content is not likely to get a pass, but having a way to brand it well and drive new content creation often will.