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Sign message
posthttps://api.circle.com/v1/w3s/developer/sign/message
- Reference
- Playground
Sign a message from a specified developer-controlled wallet. This endpoint supports message signing for Ethereum-based blockchains (using EIP-191), Solana and Aptos (using Ed25519 signatures). Note that Smart Contract Accounts (SCA) are specific to Ethereum and EVM-compatible chains. The difference between Ethereum's EOA and SCA can be found in the account types guide. You can also check the list of Ethereum Dapps 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.
message
string
Required
The user friendly message that needs to be signed. If it is a hex string, encodedByHex needs to be TRUE. The hex string should start with “0x” and have even length.
walletId
string
Required
System-generated unique identifier of the resource.
encodedByHex
boolean
Indicator of whether the input message is encoded by hex. If TRUE, then the message should be a hex string. By default, it is False.
memo
string
The human readable explanation for this sign action. Useful for presenting with extra information.
Response
RequestChoose a language
ResponseChoose an example
1{
2 "data": {
3 "signature": "3W6r38STvZuBSmk2bbbct132SjEsYSARo3CJi3JQvNUaFoYu..."
4 }
5}Did this page help you?
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