Base and Metapool

eCurve will have base 3pool for USD stablecoins and metapools to expand the functionality for other stablecoins

Metapools allow for one token to seemingly trade with another underlying base pool. This means we could create for example the following pool: [UST, [3Pool]].

In this example users could seamlessly trade UST between the three coins in the 3Pool (DAI/USDC/USDT). This is helpful in multiple ways:

• Prevents diluting existing pools

• Allows Curve to list less liquid assets

• More volume and more trading fees for the DAO

The Metapool in question would take UST and 3Pool LP tokens. This means that liquidity providers of the 3Pool who do not provide liquidity in the GUSD Metapool are shielded from systemic risks from the Metapool.