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Create Signature For Authenticated User

Changed on

Creates a new signature for signing messages or typed data.

API scope required: wallets:signatures.create

post/2025-06-09/wallets/me{walletLocator}/signatures

Request

  • Base URL: https://staging.crossmint.com/api
  • URL: https://staging.crossmint.com/api/2025-06-09/wallets/me{walletLocator}/signatures
  • Auth: none declared. Required headers: X-API-KEY, x-idempotency-key

Path parameters

walletLocatorstring required

Headers

X-API-KEYstring required

API key required for authentication

x-idempotency-keystring required

Request body

OR
OR

Example request

{
  "params": {
    "signer": "external-wallet:0x1234567890123456789012345678901234567890"
  }
}

Response

The signature has been successfully created.

idstring required

Unique identifier for the signature

type'message' | 'typed-data' | 'auth-entries' required

The type of signature

chainType'evm' | 'solana' | 'aptos' | 'sui' | 'stellar' required

The blockchain type of the wallet

walletType'smart' | 'mpc' required

The wallet type (smart or mpc)

status'awaiting-approval' | 'pending' | 'failed' | 'success' required

Current status of the signature

errorunknown
outputSignaturestring

The wallet's output signature of the request

Changes

  • 3983c72e453aRevision changes
    • breaking

      removed the enum value astar-zkevm of the request property //

    • breaking

      removed the enum value astar-zkevm of the request property //

    • breaking

      removed the enum value base-goerli of the request property //

    • breaking

      removed the enum value base-goerli of the request property //

    • breaking

      removed the enum value coti of the request property //

    • breaking

      removed the enum value coti of the request property //

    • breaking

      removed the enum value coti-testnet of the request property //

    • breaking

      removed the enum value coti-testnet of the request property //

    • breaking

      removed the enum value ethereum-goerli of the request property //

    • breaking

      removed the enum value ethereum-goerli of the request property //

    • breaking

      removed the enum value hedera of the request property //

    • breaking

      removed the enum value hedera of the request property //

    • breaking

      removed the enum value hedera-testnet of the request property //

    • breaking

      removed the enum value hedera-testnet of the request property //

    • breaking

      removed the enum value lightlink of the request property //

    • breaking

      removed the enum value lightlink of the request property //

    • breaking

      removed the enum value lightlink-pegasus of the request property //

    • breaking

      removed the enum value lightlink-pegasus of the request property //

    • breaking

      removed the enum value mode of the request property //

    • breaking

      removed the enum value mode of the request property //

    • breaking

      removed the enum value mode-sepolia of the request property //

    • breaking

      removed the enum value mode-sepolia of the request property //

    • breaking

      removed the enum value optimism-goerli of the request property //

    • breaking

      removed the enum value optimism-goerli of the request property //

    • breaking

      removed the enum value plume of the request property //

    • breaking

      removed the enum value plume of the request property //

    • breaking

      removed the enum value plume-testnet of the request property //

    • breaking

      removed the enum value plume-testnet of the request property //

    • breaking

      removed the enum value polygon-mumbai of the request property //

    • breaking

      removed the enum value polygon-mumbai of the request property //

    • breaking

      removed the enum value rari of the request property //

    • breaking

      removed the enum value rari of the request property //

    • breaking

      removed the enum value rari-testnet of the request property //

    • breaking

      removed the enum value rari-testnet of the request property //

    • breaking

      removed the enum value soneium of the request property //

    • breaking

      removed the enum value soneium of the request property //

    • breaking

      removed the enum value soneium-minato-testnet of the request property //

    • breaking

      removed the enum value soneium-minato-testnet of the request property //

    • breaking

      removed the enum value u2u-nebulas of the request property //

    • breaking

      removed the enum value u2u-nebulas of the request property //

    • breaking

      removed the enum value u2u-solaris of the request property //

    • breaking

      removed the enum value u2u-solaris of the request property //

    • breaking

      removed the enum value viction of the request property //

    • breaking

      removed the enum value viction of the request property //

    • breaking

      removed the enum value viction-testnet of the request property //

    • breaking

      removed the enum value viction-testnet of the request property //

    • breaking

      removed the enum value world-chain of the request property //

    • breaking

      removed the enum value world-chain of the request property //

    • breaking

      removed the enum value world-chain-sepolia of the request property //

    • breaking

      removed the enum value world-chain-sepolia of the request property //

    • breaking

      removed the enum value xai of the request property //

    • breaking

      removed the enum value xai of the request property //

    • breaking

      removed the enum value xai-sepolia-testnet of the request property //

    • breaking

      removed the enum value xai-sepolia-testnet of the request property //

    • breaking

      removed the enum value zenchain-testnet of the request property //

    • breaking

      removed the enum value zenchain-testnet of the request property //

    • breaking

      removed the enum value zkatana of the request property //

    • breaking

      removed the enum value zkatana of the request property //

    • breaking

      removed the enum value zkyoto of the request property //

    • breaking

      removed the enum value zkyoto of the request property //

    • breaking

      removed the enum value zora-goerli of the request property //

    • breaking

      removed the enum value zora-goerli of the request property //

    • info

      removed the astar-zkevm enum value from the // response property for the response status

    • info

      removed the astar-zkevm enum value from the // response property for the response status

    • info

      removed the base-goerli enum value from the // response property for the response status

    • info

      removed the base-goerli enum value from the // response property for the response status

    • info

      removed the coti enum value from the // response property for the response status

    • info

      removed the coti enum value from the // response property for the response status

    • info

      removed the coti-testnet enum value from the // response property for the response status

    • info

      removed the coti-testnet enum value from the // response property for the response status

    • info

      removed the ethereum-goerli enum value from the // response property for the response status

    • info

      removed the ethereum-goerli enum value from the // response property for the response status

    • info

      removed the hedera enum value from the // response property for the response status

    • info

      removed the hedera enum value from the // response property for the response status

    • info

      removed the hedera-testnet enum value from the // response property for the response status

    • info

      removed the hedera-testnet enum value from the // response property for the response status

    • info

      removed the lightlink enum value from the // response property for the response status

    • info

      removed the lightlink enum value from the // response property for the response status

    • info

      removed the lightlink-pegasus enum value from the // response property for the response status

    • info

      removed the lightlink-pegasus enum value from the // response property for the response status

    • info

      removed the mode enum value from the // response property for the response status

    • info

      removed the mode enum value from the // response property for the response status

    • info

      removed the mode-sepolia enum value from the // response property for the response status

    • info

      removed the mode-sepolia enum value from the // response property for the response status

    • info

      removed the optimism-goerli enum value from the // response property for the response status

    • info

      removed the optimism-goerli enum value from the // response property for the response status

    • info

      removed the plume enum value from the // response property for the response status

    • info

      removed the plume enum value from the // response property for the response status

    • info

      removed the plume-testnet enum value from the // response property for the response status

    • info

      removed the plume-testnet enum value from the // response property for the response status

    • info

      removed the polygon-mumbai enum value from the // response property for the response status

    • info

      removed the polygon-mumbai enum value from the // response property for the response status

    • info

      removed the rari enum value from the // response property for the response status

    • info

      removed the rari enum value from the // response property for the response status

    • info

      removed the rari-testnet enum value from the // response property for the response status

    • info

      removed the rari-testnet enum value from the // response property for the response status

    • info

      removed the soneium enum value from the // response property for the response status

    • info

      removed the soneium enum value from the // response property for the response status

    • info

      removed the soneium-minato-testnet enum value from the // response property for the response status

    • info

      removed the soneium-minato-testnet enum value from the // response property for the response status

    • info

      removed the u2u-nebulas enum value from the // response property for the response status

    • info

      removed the u2u-nebulas enum value from the // response property for the response status

    • info

      removed the u2u-solaris enum value from the // response property for the response status

    • info

      removed the u2u-solaris enum value from the // response property for the response status

    • info

      removed the viction enum value from the // response property for the response status

    • info

      removed the viction enum value from the // response property for the response status

    • info

      removed the viction-testnet enum value from the // response property for the response status

    • info

      removed the viction-testnet enum value from the // response property for the response status

    • info

      removed the world-chain enum value from the // response property for the response status

    • info

      removed the world-chain enum value from the // response property for the response status

    • info

      removed the world-chain-sepolia enum value from the // response property for the response status

    • info

      removed the world-chain-sepolia enum value from the // response property for the response status

    • info

      removed the xai enum value from the // response property for the response status

    • info

      removed the xai enum value from the // response property for the response status

    • info

      removed the xai-sepolia-testnet enum value from the // response property for the response status

    • info

      removed the xai-sepolia-testnet enum value from the // response property for the response status

    • info

      removed the zenchain-testnet enum value from the // response property for the response status

    • info

      removed the zenchain-testnet enum value from the // response property for the response status

    • info

      removed the zkatana enum value from the // response property for the response status

    • info

      removed the zkatana enum value from the // response property for the response status

    • info

      removed the zkyoto enum value from the // response property for the response status

    • info

      removed the zkyoto enum value from the // response property for the response status

    • info

      removed the zora-goerli enum value from the // response property for the response status

    • info

      removed the zora-goerli enum value from the // response property for the response status

  • 19493bf640a4Revision changes
    • warning

      added the new arc enum value to the // response property for the response status

    • warning

      added the new arc enum value to the // response property for the response status

    • warning

      added the new celo enum value to the // response property for the response status

    • warning

      added the new celo enum value to the // response property for the response status

    • warning

      added the new celo-sepolia enum value to the // response property for the response status

    • warning

      added the new celo-sepolia enum value to the // response property for the response status

    • info

      added the new arc enum value to the request property //

    • info

      added the new arc enum value to the request property //

    • info

      added the new celo enum value to the request property //

    • info

      added the new celo enum value to the request property //

    • info

      added the new celo-sepolia enum value to the request property //

    • info

      added the new celo-sepolia enum value to the request property //