> For the complete documentation index, see [llms.txt](https://dappaccountdao.gitbook.io/dappaccountdao/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dappaccountdao.gitbook.io/dappaccountdao/ecurve/base-and-metapool.md).

# 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.**