Built something the catalogue is missing? Email it to us. If you are not the vendor and the gap is obvious anyway, send it and say so. Already listed and something is wrong? Claim the listing instead.
What belongs here is software and data: programs, APIs, libraries, feeds. Exchanges themselves, wallets, custody and paid signal services are out, and so is anything with no crypto market behind it — the boundary is on the about page.
Write to
What to put in it
Free, and it buys no place in a listing.
First, an initial review. We check that the product is in scope, that it is what its own pages say it is, that its publisher can be identified, and that there is a way to look at it beyond a sales call. Exchanges themselves, wallets, custody and anything sold as signals, calls or managed allocation stop here. We reply after this step, usually within a week — including when the answer is no.
Then, if it passes, the card. We write it ourselves, from the vendor’s own pages, pricing and documentation rather than from your email, with a date on every block. Copy you supply can be published, but only once the listing is claimed, and in its own labelled block, separate from our description; the two are never merged. A tool that belongs in a category we have not opened yet waits until we get there.
Nothing in a submission buys a place in a listing, a position in one, a rating, an omission, or a word of the description, and nothing moves a submission ahead of the rest of the pile. A donation does none of that either: the answer about the product comes first, and a donation, if you still want to make one, is taken after it. Paid placement buys presentation and a label and nothing else — the advertising page has the details. Submitting is free today; if that ever carries a fee, the fee will buy a look and never the answer.