API3 is a first-party oracle solution that provides data feeds and OEV rewards for DeFi projects across multiple chains.
DeFi Tools
Function
Function | FBTC
About Function
Function lets BTC holders convert Bitcoin into FBTC, a 1:1 reserve-backed token deployable on Ethereum, Mantle, and Solana. Users can mint FBTC, supply it to lending markets, deposit into Cian or Sentora vaults for stablecoin yield, and verify reserves on-chain. The protocol's reserves are publicly auditable and target institutional-grade operations.
Official resources
Websitefxn.xyz
DocumentationGetting started
GitHubOfficial repository
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