Class MultisigApi

constructor

• new MultisigApi(api: AftermathApi): MultisigApi

  Creates a multisig derivation helper from a configured AftermathApi.

  Parameters

  • api: AftermathApi

    Provider containing the shared-custody public key.

  Returns MultisigApi

  Throws

  Error when shared-custody addresses are not configured.

ReadonlysharedCustodyAddresses

getMultisigForUser

• getMultisigForUser(inputs: ApiMultisigUserBody): MultisigData

  Derives a deterministic 1-of-2 Sui multisig from the shared-custody key and the user's Ed25519 public key.

  Each key has weight 1, and either key can authorize the multisig because the threshold is 1. The user key may be 32 raw Ed25519 bytes or 33 bytes with the leading Sui Ed25519 scheme flag. The configured shared-custody key is base64 encoded and includes its scheme flag, which this method strips before constructing the key.

  Parameters

  • inputs: ApiMultisigUserBody

    User public key bytes in raw or Sui scheme-flagged format.

  Returns MultisigData

  The derived MultiSigPublicKey and its corresponding Sui address.

  Throws

  Error when either public key is missing or has an invalid length.