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POST
maxBuilderFee | Hyperliquid Info API

Credit Cost

1 per call

Processing

Realtime
The Hyperliquid info endpoint with type: "maxBuilderFee" is used to fetch the maximum builder fee a user has approved for a given builder.
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  • Wire-equal to POST api.hyperliquid.xyz/info with {"type": "maxBuilderFee", "user": "...", "builder": "..."}.
  • The response is a bare integer in tenths of a basis point (e.g. 10 = 1 basis point = 0.01%).
  • Returns 0 when the user has not approved any builder fee for that builder.
Returns the maximum builder fee that a user has authorized a specific builder to charge, expressed as an integer in tenths of a basis point. Builders route order flow on behalf of users and may attach a fee up to this approved ceiling; 0 means no approval is in place for that builder. User-keyed (and scoped to a single builder).

Endpoint

Request

string
required
Always "maxBuilderFee".
string
required
The wallet address (lowercase 0x-prefixed hex).
string
required
The builder address the approval is scoped to (lowercase 0x-prefixed hex).

Example

Response

The body is a bare integer - the approved ceiling in tenths of a basis point.

Field descriptions

int
Maximum approved builder fee, in tenths of a basis point (e.g. 10 = 1 bp = 0.01%). 0 when no builder fee is approved for this builder.

maxMarketOrderNtls

fetch the maximum market-order notional for each leverage bucket.

exchangeStatus

fetch the current exchange operational status.

liquidatable

list accounts currently eligible for liquidation.

marginTable

fetch the margin-tier (leverage-bracket) table for a given margin table id.

validatorL1Votes

fetch the pending validator L1 governance votes/actions.
See all Hyperliquid endpoints: Overview hub · Info API reference Last reviewed: 2026-07-24