Dapp storeEthereumDeFi dappsDecentralized synthetics
Mainstreet
Mainstreet
Decentralized syntheticsStablecoin issuers

Mainstreet

A synthetic dollar protocol on Ethereum that issues msUSD, backed by market-neutral box-spread strategies on listed options.

Ethereum logo
Transaction Fees, Open-source
This link will take you to a third-party site not owned or operated by Alchemy.

What is Mainstreet?

Mainstreet is a synthetic dollar protocol on Ethereum that mints msUSD against capital deployed into box-spread arbitrage on listed options. Users deposit, mint msUSD, and stake into msY (Main Street Yield) to earn market-neutral, USD-denominated returns rather than directional crypto exposure.

Start building with web3's best API for token data
Get your API key

Best Decentralized synthetics

Discover more web3 applications and developer tools.

See all dapps

Developer resources from Alchemy

App store listings are independently reviewed and written by Alchemy using a combination of inbound submissions, editorial research, public project sources, and third-party directories, including ecosystem data from The Grid under the Open Database License, DefiLlama, DappRadar, Reown, and chain ecosystem pages.

Dapp store background image

Build blockchain magic

Alchemy combines the most powerful web3 developer products and tools with resources, community and legendary support.
Get your API key