完整费用费率标准

[!NOTE] 简体中文官方文档：完全公开透明的计费公式、收款地址与平台不收取任何隐性费用的保证。 核心交易规则为非托管模式，买卖双方按标准费率收取服务费，并于比特币主网进行原子结算。

Every fee is stated before you sign. There are no hidden fees. There is one fee that surprises people, and it is in the second table.

SRC-20 marketplace trades

Listing total (sats)Assumed payment size (vB)Fee rate (sat/vB, half hour tier today)

Buyer service fee

1.5%, 500 sat minimum

Seller service fee

1.5%, 500 sat minimum

Network fee

set by the fee rate, paid by whoever signs

Source

fee snapshot, app 5b98a40

Estimates only. No quote is requested and none exists here: the review panel in StampDEX is the real arithmetic for a trade you are about to sign. The minimum per-side fee reaches a large share of a trade at the 2,000 sat listing floor; see Fees.

Listing total	Buyer fee	Seller fee	Both sides	Fees as a share	Network fee (141 vB at half hour)
2,000 sats	500 sats	500 sats	1,000 sats	50.0%	423 sats
12,000 sats	500 sats	500 sats	1,000 sats	8.3%	423 sats
100,000 sats	1,500 sats	1,500 sats	3,000 sats	3.0%	423 sats
1,000,000 sats	15,000 sats	15,000 sats	30,000 sats	3.0%	423 sats

Fee	Amount	Who pays
服务费	1.5% of the trade total, with a 500 sat minimum, per side	The buyer pays one, the seller pays one
网络费用	Set by the fee rate you choose, in sat/vB	Whoever signs the transaction that pays it

Both sides pay, so a trade carries 3% in total. The seller’s side is deducted from their payment; the buyer’s side is funded by the extra sats the buyer sends. The two fees are paid together as a single output in the settlement transaction.

The minimum dominates on small trades

The 500 sat floor is per side, and the smallest trade StampDEX will list is 2,000 sats.

Trade total	Buyer fee	Seller fee	Total fee	As a share of the trade
2,000 sats	500	500	1,000	50%
20,000 sats	500	500	1,000	5%
33,334 sats	500	500	1,000	3%
100,000 sats	1,500	1,500	3,000	3%
460,000 sats	6,900	6,900	13,800	3%

Above roughly 33,334 sats the percentage takes over and the all-in cost settles at 3%. Below it, the floor is what you are paying. This is arithmetic, not a penalty, but it is worth knowing before you list something small.

SRC-20 mint, deploy, and transfer

Every SRC-20 transaction StampDEX builds outside the marketplace, a mint, a deploy, or a plain transfer, carries a flat 1,500 sat platform fee, the same fee the Universe Inscribe app charges. It appears as its own output in the transaction your wallet shows.

Bitcoin Stamps

No StampDEX fee. A stamp purchase pays the dispenser’s asking rate and the Bitcoin 网络费用. Opening and closing a dispenser pays only the 网络费用.

Where the 服务费 goes

To a single fixed pay-to-Taproot output:

bc1pl0xdhr5delrk80d6s5h5qa9awsf7qzc45jl8na6ns8vp3e0vv7wqxattxy

It is a constant, not a per-user address, and it is visible on chain in every SRC-20 settlement and in every deploy, mint, or transfer StampDEX builds. Check it in the transaction your wallet shows you. See Review a 部分签名的比特币交易 (PSBT) before signing.

Network fees

Bitcoin transactions pay miners by size, not by value.

curl https://stamp.api.bitcoinuniverse.io/api/v1/market/fees

You get five tiers: fastest, half hour, hour, economy, and minimum. If any tier is missing or is not a number, the whole response is rejected with an error rather than served partially.

• The estimate is cached for about 60 seconds.
• If you do not choose a rate, the half hour tier is used, falling back to 25 sat/vB when no estimate is available.
• Your chosen rate is applied when you buy, so a seller’s listing-time rate is not imposed on you.
• Nobody can guarantee a confirmation time. The rate buys a position in a queue, not a promise.

Dust outputs are not fees

An SRC-20 transaction carries several tiny outputs that are protocol structure, not charges:

Output	Value	Goes to
Recipient marker	330 sats	The buyer, as the output the transfer credits
Data chunk	330 sats each	The encoded transfer itself
Seller anchor	548 sats	The seller, returned

None of them go to StampDEX.

Browsing is free

Exploring markets, stamps, collections, and the public API costs nothing and needs no wallet.

Related

• Buy SRC-20
• Sell SRC-20
• Review a 部分签名的比特币交易 (PSBT) before signing