Leading aggregators like 1inch and Matcha have experimented with token models that align incentives between routers, liquidity sources, and users. Understanding these models reveals how aggregators sustain themselves without charging direct swap fees.

1inch (1INCH token): Used for governance and staking. Stakers can receive a share of protocol surplus fees. The Fusion mode allows gasless swaps where resolvers compete to fill orders.

Matcha (0x): Charges a small protocol fee (historically ~0.15%) on some routes. 0x token (ZRX) governs the underlying RFQ and on-chain liquidity network.

Positive slippage capture: Aggregators may keep the difference between quoted and executed price
RFQ (Request for Quote): Market makers compete to fill orders, often beating AMM prices
Gas rebates: Some aggregators subsidize gas to attract volume

Model	Revenue Source	User Cost
1inch Fusion	Surplus fee from resolvers	0 gas, possible price improvement
Matcha/0x	Protocol fee on select routes	~0.15% on some pairs
Pure AMM router	None (free)	Gas + slippage only