# STEAMM Beta
STEAMM Beta is officially live as of February 17th!
**What is STEAMM and how does it work?**
STEAMM is a Superfluid AMM that deposits idle liquidity to Suilend for additional yield.
**Where can I access STEAMM Beta?**
Head to to access STEAMM Beta. During the beta period, a Rootlets NFT will be required to access STEAMM.
[Click here](https://www.tradeport.xyz/sui/collection/rootlets?bottomTab=trades\&tab=items) to purchase a Rootlets NFT at Tradeport.
**What pools types does STEAMM support?**
At launch, STEAMM Beta supports Constant pools. Constant pools operate similarly to Uniswap V2, using the constant product formula: 𝑥 × 𝑦 = 𝑘.
Where:
• 𝑥 and 𝑦 are the reserves of two assets in the pool,
• 𝑘 is a constant that remains unchanged during trades, ensuring that price adjustments happen algorithmically.
**What assets does STEAMM support?**
At launch, STEAMM Beta supports the following asset pairs and fee tiers:
* SUI-USDC (0.3%)
* SEND-SUI (2%)
* wBTC-USDC (0.3%)
* wBTC-SUI (0.3%)
**What fees does STEAMM have?**
When swaps are made via STEAMM, a protocol fee of 20% is incurred. For example, if a swap is made from a pool with a fee tier of 0.3%, 80% of the fee (0.24%) is distributed to liquidity providers (LPs), while the remaining 20% (0.06%) is reserved as the protocol fee.
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