updateFeeSetting action lets you configure per-user fee rate overrides for your account within a specific market deployer. User-level fee settings take the highest priority in the three-tier hierarchy — they override both the market deployer’s default rates and any contract-level defaults.
Maker fees can be negative to represent rebates, but the absolute value of the maker rate must not exceed the taker rate (|makerBps| ≤ takerBps). Omitting takerBps or makerBps clears that override entirely, causing your account to fall back to the owner or contract default for that rate. Explicitly passing 0 sets the fee to exactly 0% rather than clearing the override.
Endpoint
Request
All requests must include an ECDSA signature and a millisecond-precision nonce.Action fields
string
required
Fixed value:
"updateFeeSetting".int32
required
The ID of the market deployer whose fee settings you are overriding for your account.
int16
Your taker fee rate override, expressed in basis points (1 bps = 0.01%). Omit this field to clear any existing taker override and fall back to the default. Pass
0 to explicitly set a 0% taker fee.int16
Your maker fee rate override, expressed in basis points. Can be negative to represent a maker rebate. Omit this field to clear any existing maker override and fall back to the default. The constraint
|makerBps| ≤ takerBps must hold.Response
Success
Response fields
int16
Your previous taker fee override in basis points. Returns
-32768 if no user-level taker override was previously set.int16
Your previous maker fee override in basis points. Returns
-32768 if no user-level maker override was previously set.int16
Your new taker fee override in basis points, as stored after this request.
int16
Your new maker fee override in basis points, as stored after this request.
A
takerBefore or makerBefore value of -32768 (the minimum value for an int16) signals that no user-level override was previously configured for that rate — it is a sentinel, not a fee value.