Frequently asked questions

Do I need a wallet to use StampDEX?

No. Markets, stamps, collections, activity, address holdings, and the API are open to everyone. A wallet is needed only to buy, sell, or have the site know which address is yours.

Does StampDEX hold my funds?

For a stamp purchase, no: it is one Bitcoin transaction between you and the seller’s dispenser.

For an SRC-20 trade, yes, temporarily. Your payment sits in an escrow address StampDEX controls until the tokens reach you. StampDEX says so before you sign. See Where your funds are.

Is StampDEX non-custodial?

Not for SRC-20 trades, and it does not claim to be. See Safety and trust.

What does StampDEX charge?

1.5% per side of an SRC-20 trade with a 500 sat minimum per side, so 3% in total. A flat 1,500 sats on a mint, deploy, or transfer. Nothing on a stamp purchase beyond the dispenser price. Network fees go to miners. See Fees.

Why is the fee 50% on a tiny trade?

Because the 500 sat minimum per side dominates below about 33,000 sats, and the smallest listing allowed is 2,000 sats. The table in Fees shows exactly where the floor stops mattering.

Can I change the price of a listing?

Not in place. The registry records update-listing as unsupported for both protocols, because no atomic listing update is implemented: listings must be cancelled and relisted. StampDEX offers a guided reprice that chains the two steps, and it still produces a new order, a new signature, and a second network fee. See Change a listing price.

Can I make an offer on something?

No. The registry records make-offer and accept-offer as unsupported for both protocols. See Offers.

Why does a number show as unknown?

Because the data source had no answer. StampDEX never replaces a missing value with 0. See Unknown is not zero.

Where does the data come from?

Bitcoin chain data comes from Universe-operated infrastructure. The Stamps and SRC-20 index currently comes from stampchain.io, a third party, and StampDEX says so on the page and in its status endpoint. See Data provenance.

Two tokens have the same ticker. Which is real?

Tickers are not identities. Check the deployment transaction and block on the token page against the token you researched. See Asset identity.

My trade is taking a while. Should I worry?

Usually not. Bitcoin confirmations set the pace, settlement waits for two blocks of depth, and the order page names each state with its transaction id. See Order lifecycle and Recovery.

My order says Failed. Is my money gone?

No. It is in the listing’s escrow address, which you can look up in any block explorer. Settlement stopped there rather than releasing funds against a balance it could not verify. See Recovery.

Is there an API?

Yes, the same one the site uses, with no key needed for reads. Start at the API quick start.

Can I call the API from my website’s front end?

Not directly. Cross-origin browser access is allow-listed. Call it from your backend. Media routes are open to any origin.

How do I report a bug or a security problem?

Bugs: GitHub issues. Security: email legal@bitcoinuniverse.io and do not open a public issue.