# ECDSA API

You can learn about APIs of contracts related to ECDSA under the following links:

[EcdsaAuthorization](https://docs.threshold.network/app-development/tbtc-contracts-api/ecdsa-api/ecdsaauthorization)

[EcdsaDkg](https://docs.threshold.network/app-development/tbtc-contracts-api/ecdsa-api/ecdsadkg)

[EcdsaDkgValidator](https://docs.threshold.network/app-development/tbtc-contracts-api/ecdsa-api/ecdsadkgvalidator)

[EcdsaInactivity](https://docs.threshold.network/app-development/tbtc-contracts-api/ecdsa-api/ecdsainactivity)

[IWalletOwner](https://docs.threshold.network/app-development/tbtc-contracts-api/ecdsa-api/iwalletowner)

[IWalletRegistry](https://docs.threshold.network/app-development/tbtc-contracts-api/ecdsa-api/iwalletregistry)

[WalletRegistry](https://docs.threshold.network/app-development/tbtc-contracts-api/ecdsa-api/walletregistry)

[WalletRegistryGovernance](https://docs.threshold.network/app-development/tbtc-contracts-api/ecdsa-api/walletregistrygovernance)

[Wallets](https://docs.threshold.network/app-development/tbtc-contracts-api/ecdsa-api/wallets)