Fees
Network operation fees, per-asset maker/taker rates, and fee payment in any asset
Fees
SB Chain has two distinct fee layers: network operation fees (set by governance, charged per blockchain operation) and per-asset market fees (set by the asset issuer).
| Operation | Default Fee |
|---|---|
| Create limit order | 5 × GRAPHENE_BLOCKCHAIN_PRECISION |
| Update limit order | 0.375 × GRAPHENE_BLOCKCHAIN_PRECISION |
| Cancel limit order | Free |
| Call order update (collateral / debt) | 20 × GRAPHENE_BLOCKCHAIN_PRECISION |
| Bid collateral (post global settlement) | 20 × GRAPHENE_BLOCKCHAIN_PRECISION |
Per-asset market fees are upgraded to separate maker/taker rates under BSIP81. The is_maker field on fill_order_operation determines which rate applies.
| Fee Type | Protocol Field | Applied To |
|---|---|---|
| Maker fee | market_fee_percent | Order resting on the book at time of fill |
| Taker fee | taker_fee_percent | Order that aggresses and causes the fill |
| Maker discount | maker_fee_discount_percent | Global governance parameter reducing maker cost |
| Network share | market_fee_network_percent | Protocol's cut of the market fee collected |
Asset issuers can whitelist accounts to receive a share of market fees generated by trades they refer. Network operation fees can be paid in any asset with a valid core_exchange_rate — users are never forced to hold the base asset solely to pay trading fees.
SwapBlok Market Fee Rate
SwapBlok sets the market fee on all wrapped assets (wETH, wSOL, wBTC, wUSDT) at up to 0.20% at genesis. This is the maximum rate — the committee may reduce it below 0.20% as trading volume grows. Higher volume means more absolute revenue at a lower rate, so the fee decreases as the protocol scales to remain competitive against centralised venues. All rate changes require 72 hours public notice per the Foundation's governance commitments.
| Rate | Context |
|---|---|
| Up to 0.20% | Genesis rate, below the Uniswap v2/v3 standard of 0.30% |
| Reducible by governance | As volume grows, lower rates sustain absolute revenue while improving competitiveness |