apitracker.io
In short: Getting listed on API Tracker is free. Plan for about 10 minutes — it is a form plus links and assets you already have.
What they ask for: Submit your public API with docs link, SDKs and authentication details.
Submit your public API with docs link, SDKs and authentication details.
Only products with public APIs fit.
Open the submission page on apitracker.io and complete its form — that is the "Open submit page" link at the top of this page.
Only products with public APIs fit.
Priority sets the band — this one is medium. Cost (free) and effort (quick) move it within that band, which puts it in the useful tier. The score orders a submission queue. It is not a measure of the site’s domain authority, traffic or quality.