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Interest-bearing collateral tokens of the Fountain Protocol
When tokens are supplied to the Fountain Protocol’s various markets, corresponding fTokens are minted and received by the supplier’s wallet (eg. ROSE mints fROSE). Whenever a user mints, redeems, borrows, repays, or liquidates an account, they are doing so through an interaction with the relevant fToken contract.
All token markets on Fountain Protocol have their own supply interest rate. By holding a fToken for one block or greater, the custodian automatically earns interest paid by borrowers of the asset that is expressed in an increase in the value of the fToken against its corresponding underlying asset.