Building a Backlink Database - Idea validation

Hello IndieHackers,

I thought about building a database for backlinks. Yes, just like those of Semrush, Moz and Co. But they have all build products on their databases which can be used but never the data itself.

My idea was to build the infrastructure and the database, and then provide the data via API for others to use in their products. This would mean that one could concentrate exclusively on the collection and management of data.

What do you think about the idea?