For Developers
Smart Contract API
Fantom Liquid Staking API

FTM Liquid Staking API

To integrate with FTM Liquid Staking, use the smart contract functions and examples below.

Stake FTM and claim ankrFTM


Stakes the msg.value of FTM and claims ankrFTM for it.

Smart contract

Unstake ankrFTM and claim FTM


Burns ankrFTM and gets FTM for the burned ankrFTM.


amount (uint256, required) — amount of ankrFTM to be unstaked.

Smart contract


averagePercentageRate(uint256 day, address addr)

Gets the APR for ankrFTM.

The formula is best expressed by an example.

With 3 provided as the depth, the APR = ((((day 3 - day 2) / day 3) * 100) + ((day 2 - day 1) / day 2) * 100) + ((day 1 - current day) / day 1) * 100) / 3) * 365.

  • day (uint256, required) — number of days to get the APR for. Max value — 7 days.
  • address (address, required) — address of the token contract. The address of ankrFTM is 0xCfC785741Dc0e98ad4c9F6394Bb9d43Cd1eF5179.
Smart contract

averagePercentageRate being a read function, we suggest you visit the links and make a query entering a desired number of days to see an example.

Get staking metrics

To integrate Ankr Staking metrics into your dashboards or use metrics like APY in your products, read Liquid Staking Metrics.