Ethereum (EVM) support on Turnkey
Address derivation
Turnkey supports EVM address derivation with ADDRESS_TYPE_ETHEREUM. This address format is valid across all EVM chains and L2s.
Transaction construction and signing
To construct and sign an EVM transaction with Turnkey, we offer:
- : contains a
createAccountmethod to create a Turnkey-powered custom account which Viem can use seamlessly. - : contains a
TurnkeySignerwhich implements Ethers’AbstractSignerinterface. See Ethers docs.
Transaction parsing, policies, and signing
Turnkey has built an EVM parser which runs in a secure enclave, to parse unsigned EVM transactions and extract useful metadata: transaction source, destination, amount, chain ID, and more. See the EthereumTransaction struct in our policy language page for a full list.
As a bonus, Turnkey also takes care of combining the signature with the original payload if you use the SIGN_TRANSACTION activity types: the input is the unsigned payload (RLP encoded), and the output is the signed RLP encoded transaction, ready to be broadcast!
Account abstraction
Turnkey is built to be flexible: a lot of our customers use Turnkey as a smart contract signer, alongside other types of signers.
This is so common that AA wallet providers have integrated Turnkey as a default solution in their documentation. Refer to our AA Wallet documentation for further information.
EIP-1193 provider
We’ve published an experimental package, which adheres to the EIP-1193 standard. It’s built to integrate seamlessly with a broad spectrum of EVM-compatible chains, offering capabilities like account management, transaction signing, and blockchain interaction.
Wallet signer
Did you know? Turnkey activities can be signed with an API key, a passkey…or any Ethereum wallet if you use our package!
Examples and demos
A lot of our demos use EVM chains and capabilities. The most complete demo is our Demo Embedded wallet, a fully-functional, hosted wallet which showcases (among other things) send and receive functionality on Sepolia.
Try it out at wallet.tx.xyz!
The code behind this demo is open-source, available at https://github.com/tkhq/demo-embedded-wallet/
If you’re looking for shorter, more focused examples, here are a few worth checking out:
- : shows both Ethers and Viem integrations.
- : shows how to use Turnkey with Gnosis (Safe).
- : shows how to use Turnkey with Uniswap, using Ethers.
- : short example focused on EIP-1193 provider usage.
Which EVM chains does Turnkey support?
Turnkey supports the EVM chains below for address derivation and signing arbitrary transactions:
- Arbitrum
- Aurora
- Avalanche C chain
- Avalanche Fuji
- Base
- Berachain
- BNB Smart Chain
- Celo
- Chiliz
- Cronos
- EON
- Ethereum
- Fantom
- Flare
- Gnosis
- Holesky Redstone
- Holesky Garnet
- Lukso
- Linea
- Monad
- Moonbeam
- Optimism
- Palm
- Polygon
- Redstone
- Scroll
- zkSync
- Zora
If you are using an EVM chain we do not support, feel free to contact us at hello@turnkey.com, on X, or on Slack.
Ethereum (EVM) support on Turnkey
Address derivation
Turnkey supports EVM address derivation with ADDRESS_TYPE_ETHEREUM. This address format is valid across all EVM chains and L2s.
Transaction construction and signing
To construct and sign an EVM transaction with Turnkey, we offer:
- : contains a
createAccountmethod to create a Turnkey-powered custom account which Viem can use seamlessly. - : contains a
TurnkeySignerwhich implements Ethers’AbstractSignerinterface. See Ethers docs.
Transaction parsing, policies, and signing
Turnkey has built an EVM parser which runs in a secure enclave, to parse unsigned EVM transactions and extract useful metadata: transaction source, destination, amount, chain ID, and more. See the EthereumTransaction struct in our policy language page for a full list.
As a bonus, Turnkey also takes care of combining the signature with the original payload if you use the SIGN_TRANSACTION activity types: the input is the unsigned payload (RLP encoded), and the output is the signed RLP encoded transaction, ready to be broadcast!
Account abstraction
Turnkey is built to be flexible: a lot of our customers use Turnkey as a smart contract signer, alongside other types of signers.
This is so common that AA wallet providers have integrated Turnkey as a default solution in their documentation. Refer to our AA Wallet documentation for further information.
EIP-1193 provider
We’ve published an experimental package, which adheres to the EIP-1193 standard. It’s built to integrate seamlessly with a broad spectrum of EVM-compatible chains, offering capabilities like account management, transaction signing, and blockchain interaction.
Wallet signer
Did you know? Turnkey activities can be signed with an API key, a passkey…or any Ethereum wallet if you use our package!
Examples and demos
A lot of our demos use EVM chains and capabilities. The most complete demo is our Demo Embedded wallet, a fully-functional, hosted wallet which showcases (among other things) send and receive functionality on Sepolia.
Try it out at wallet.tx.xyz!
The code behind this demo is open-source, available at https://github.com/tkhq/demo-embedded-wallet/
If you’re looking for shorter, more focused examples, here are a few worth checking out:
- : shows both Ethers and Viem integrations.
- : shows how to use Turnkey with Gnosis (Safe).
- : shows how to use Turnkey with Uniswap, using Ethers.
- : short example focused on EIP-1193 provider usage.
Which EVM chains does Turnkey support?
Turnkey supports the EVM chains below for address derivation and signing arbitrary transactions:
- Arbitrum
- Aurora
- Avalanche C chain
- Avalanche Fuji
- Base
- Berachain
- BNB Smart Chain
- Celo
- Chiliz
- Cronos
- EON
- Ethereum
- Fantom
- Flare
- Gnosis
- Holesky Redstone
- Holesky Garnet
- Lukso
- Linea
- Monad
- Moonbeam
- Optimism
- Palm
- Polygon
- Redstone
- Scroll
- zkSync
- Zora
If you are using an EVM chain we do not support, feel free to contact us at hello@turnkey.com, on X, or on Slack.