GooseFX

GooseFX is a Solana-based automated market maker (AMM) that earns liquidity providers two yield streams simultaneously: swap fees from trading activity and lending yield from idle pool capital deployed to external protocols. After sunsetting several earlier products in 2025, the team now focuses entirely on GAMMA, its core AMM with dynamic fee logic.

What GooseFX Does

Liquidity provision on standard AMMs leaves a large portion of pool capital idle at any given time — assets sitting in the pool but not being used in active swaps earn nothing beyond their share of fee income. GooseFX's GAMMA product addresses this through a feature called Fusion, which automatically routes undeployed pool liquidity to Kamino's lending markets. LPs earn fees from trades and lending interest from the same capital, with the split managed by the protocol without requiring LPs to do anything extra.

The AMM itself uses a constant-product (x*y=k) model with dynamic fees that respond to current market conditions. When volatility is high or pool balances are significantly skewed, fees rise to compensate LPs for increased impermanent loss risk. When conditions are stable, fees compress to remain competitive for traders. This fee-adjustment mechanism is automatic and continuous, recalibrating to real-time pool and market data.

GAMMA: The Core Product

GAMMA is GooseFX's current primary product. It is a Solana native AMM designed to maximize capital efficiency for liquidity providers while remaining price-competitive for traders.

Key features:

• Dynamic fees: automatically adjust based on volatility and pool imbalance, protecting LPs during adverse conditions
• Fusion dual-yield: idle capital is deployed to Kamino for additional lending interest while remaining available for swaps
• Constant-product curve: standard x*y=k formula, battle-tested and auditable
• Solana-native performance: settles at Solana's full throughput, enabling low-cost and near-instant transactions for traders

The protocol integrates with several other Solana ecosystem protocols including Kamino (for lending yield), Raydium, Jupiter, Orca, and Meteora for liquidity and routing purposes.

Product History

GooseFX launched in November 2021 with a broader initial vision that included perpetuals trading, NFT marketplace aggregation, and Structured Liquidity pools (SSL pools). By April 2025, all of those products had been sunset: the perpetuals, NFT aggregator, and SSL pools were each discontinued as the team chose to focus resources on the AMM core.

The GOFX token launched on November 2, 2021. Token holders who stake GOFX earn USDC from protocol fee revenue. In addition, GooseFX allocates 10% of all protocol revenue to an hourly automated buyback-and-burn program, which continuously removes GOFX from circulation. As of the most recent public data, more than 27 million GOFX tokens were staked across 888+ staking positions.

The GOFX token contract address on Solana is GFX1ZjR2P15tmrSwow6FjyDYcEkoFb4p4gJCpLBjaxHD.

Team and Transparency

GooseFX is built by a team of 12+ engineers. No founding team members are publicly named in official documentation. The code is stated to be open source, though no third-party security audits of GAMMA's smart contracts have been publicly disclosed.

Solana Ecosystem Fit

GooseFX is fully Solana-native. Its core protocol advantages — dynamic fees that adapt to real-time conditions, and idle capital routed to Kamino lending — are designed around Solana's low transaction costs and high throughput, which make the frequent on-chain updates that dynamic fee and idle-capital routing require economically viable. As a DEX liquidity layer integrated with Jupiter routing and Kamino lending, GooseFX sits at the intersection of Solana's swap and DeFi lending ecosystems.