ascl.net
In short: Getting listed on Astrophysics Source Code Library is free. Plan for about 45 minutes — there is material to prepare and a review to wait on.
What they ask for: Submit your -related astronomy utility only after it has been used in research submitted to or published by a refereed journal.
Submit your -related astronomy utility only after it has been used in research submitted to or published by a refereed journal.
Strict astronomy or astrophysics scope; code must be accessible, research-used, complete, moderated, and supported by a paper reference.
Open the submission page on ascl.net and complete its form — that is the "Open submit page" link at the top of this page.
Strict astronomy or astrophysics scope; code must be accessible, research-used, complete, moderated, and supported by a paper reference.
Priority sets the band — this one is later. Cost (free) and effort (moderate) move it within that band, which puts it in the long tail tier. The score orders a submission queue. It is not a measure of the site’s domain authority, traffic or quality.