Fossil is a set of smart contracts and infrastructure running on both Starknet and Ethereum L1. Its purpose is to enable Starknet smart contracts to trustlessly access any data that ever appeared on ethereum such as: state, transactions, logs, block parameters. The purpose of Fossil API is to facilitate interaction with Fossil contracts. This API hides all the complexity from the end user behind a REST API and sends webhooks once the results are ready. The Fossil API can also batch different calls to Fossils together, optimizing our calls to L1.
Nafta is a protocol that facilitates NFT Flash Loans & Long Term Renting without any collateral. This is achieved by wrapping an original NFT when it is pooled with Nafta ecosystem. Hence rented assets are only used for the utilities they provide.
DeFi vaults which allow you to trade Ethereum mainnet basefee. Pitch Lake uses StarkNet STARKSs to calculate basefee TWAP in a given month to be used for cash settlement. Access to verified Ethereum mainnet block header is achieved with the help of Oiler Fossil.