Can I use this data in my own product?
Inside your own work
Use what you reveal however you like in your own research, client work and internal tooling. That is what the directory is for, and no plan restricts it.
Republishing is different
Wholesale republication of the directory, or reselling it on as your own feed, is not what a Pro subscription covers. The whole asset here is the aggregation work: the archive checks, the link verification, the spam screening and the scoring. Handing that over as a copy would be handing over the product.
Building on the API
Every plan includes a REST API and an MCP endpoint precisely so the data can
sit inside something you build, and the Business plan adds a change feed for
keeping a copy in step. Having an API key is not itself permission to
republish: the rule above is unchanged, and a name whose tier is not open
stays inside your own work. If what you are building is customer-facing, tell
us what you have in mind: get in touch and we will sort out terms
rather than leave you guessing.
Attribution
Not required for internal use. Appreciated anywhere public.