API Reference

Sign typed data

posthttps://api.circle.com/v1/w3s/developer/sign/typedData

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| Sign the EIP-712 typed structured data from a specified developer-controlled wallet. You must provide either a walletId or a walletAddress and blockchain pair in the request body. This endpoint only supports Ethereum and EVM-compatible blockchains. Please note that not all apps currently support Smart Contract Accounts (SCA); the difference between Ethereum's EOA and SCA can be found in the account types guide. You can also check the list of Ethereum apps that support SCA: https://eip1271.io/.

Header parameters
X-Request-Id
string

Developer-provided parameter used to identify this request. Useful when communicating with Circle Support.

Body parameters
entitySecretCiphertext
string
Required

A base64 string expression of the entity secret ciphertext. The entity secret should be encrypted by the entity public key. Circle mandates that the entity secret ciphertext is unique for each API request.

data
string
Required

A string represents the typed structured data in EIP-712

walletId
string

System-generated unique identifier of the resource.

memo
string

The human readable explanation for this sign action. Useful for presenting with extra information.

blockchain
string

The blockchain network that the resource is to be created on or is currently on.

Allowed valuesETHETH-SEPOLIAAVAXAVAX-FUJIMATICMATIC-AMOYSOLSOL-DEVNETARBARB-SEPOLIANEARNEAR-TESTNETEVMEVM-TESTNETUNIUNI-SEPOLIABASEBASE-SEPOLIAOPOP-SEPOLIAAPTOSAPTOS-TESTNETARC-TESTNET
walletAddress
string

Blockchain generated unique identifier, associated with wallet (account), smart contract or other blockchain objects.

Response
RequestChoose a language
ResponseChoose an example
1{
2  "data": {
3    "signature": "3W6r38STvZuBSmk2bbbct132SjEsYSARo3CJi3JQvNUaFoYu..."
4  }
5}
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