V2 Fees

All V2 pools charge a fixed 0.3% fee on every swap. This fee is not configurable per pool.

How Fees Work

The fee is applied to the input token before the swap calculation:

Input: 1000 tokens
Fee:   1000 × 0.003 = 3 tokens
Effective input: 997 tokens → used for swap calculation

Fees are not distributed separately — they accumulate directly in the pool reserves. This means:

A pool with 100,000 A / 100,000 B reserves:

Day	Swap Volume	Fees Collected	New k
1	10,000 A	30 A	Slightly higher
2	50,000 B	150 B	Higher still

Over time, the pool reserves grow from accumulated fees, benefiting all LP token holders proportionally to their share.

	V2	V3
Fee rate	Fixed 0.3%	Selectable (0.01%, 0.05%, 0.3%, 1%)
Fee collection	Auto-compounded into reserves	Collected separately, must be claimed
Fee per LP	Distributed evenly across all LPs	Only earned by in-range positions