Module fees 

Fee math shared by the bonding-curve and AMM quote paths.

Ports @pump-fun/pump-sdk-internal/src/fees.ts and @pump-fun/pump-swap-sdk/src/sdk/fees.ts. All values are basis points (u64) the way the on-chain programs store them.

Structs

AmmFeeBps

AMM fees split into LP, protocol, and coin-creator components.

BondingCurveFeeBps

Bonding-curve fees split into protocol and creator components. The AMM-style LP fee is not part of the bonding-curve fee model.

Functions

bonding_curve_market_cap

Bonding-curve market cap in lamports. marketCap = virtualQuoteReserves * mintSupply / virtualTokenReserves.

ceil_div

ceil(a / b) for non-zero b. Mirrors ceilDiv in both TS SDKs.

compute_amm_fee_bps

Resolve the bps for an AMM trade. Mirrors pump-swap-sdk’s computeFeesBps: pump pools (creator == pool-authority PDA) get tiered fees; third-party pools get the flat_fees table; with no fee_config, fall back to flat globals on GlobalConfig.

compute_bonding_curve_fee_bps

Resolve the bps for a bonding-curve trade. When fee_config is None, fall back to the flat fees on Global. When provided, use the tiered fees indexed by current market cap.

fee_amount

ceil(amount * basis_points / 10_000). Mirrors fee() in both TS SDKs.

is_pump_pool

true iff pool_creator matches the canonical pump-program-derived pool authority for base_mint. Used to decide whether a pool gets tiered fees (pump pools) or flat fees (third-party pools).

pool_market_cap

AMM pool market cap in lamports. marketCap = quoteReserve * baseMintSupply / baseReserve.