Spectra API

Spectra Finance integration.

Spectra is an open-source interest rate derivatives protocol that enables yield tokenisation. The protocol splits ERC-4626 compliant interest-bearing tokens into Principal Tokens (PT) and Yield Tokens (YT), allowing users to fix rates, trade yield, and earn on liquidity positions.

Spectra Finance:

About Spectra ERC4626 wrappers

The integration supports Spectra ERC-4626 wrapper contracts that wrap various rebasing tokens to make them compatible with Spectra’s yield tokenisation system.

Note: These wrappers are NOT core Spectra yield tokenisation vaults. They are ERC-4626 wrappers that enable rebasing tokens to be used within Spectra’s PT/YT system.

Currently supported wrappers:

  • sw-WUSDN (Ethereum) - Wrapper for WUSDN (SmarDex delta-neutral synthetic dollar)

  • sw-earn (Monad) - Generic ERC4626 wrapper for rebasing tokens

About WUSDN

WUSDN is a non-rebasing wrapper around USDN, a decentralised synthetic US dollar from SmarDex that uses a delta-neutral strategy to generate yield.

USDN / SmarDex (underlying protocol):