Neuronwriter embodies an enormous amount of data regarding the semantic quality of the SERP (at least for the first 30 results) :
Would be nice if there was an option to fetch those indicators directly from an API to include your data in more complex (in-house) analysis programs.
This feature is obviously interesting at an agency level, not sure it will raise interest from many people, but API is a standard for agency plan in the industry.
From a pricing strategy, you could offer a certain amount of API calls for agency plan and/or implement a pay-as-you-go tarification plan for extra calls.
I'd definitely pay for that.
2 years ago