# Sign a multisig transaction

POST

/v1/multisig/sign

Start a multisig signature, or add a signature to a partially completed multisig signature object.

## Authorizations

- **[api_key](https://dev.algorand.co/reference/rest-api/kmd/#api_key)**

## Request Body

The list of MIME types the operation can consume application/json

APIV1POSTMultisigTransactionSignRequest is the request for `POST /v1/multisig/sign`

object

**partial_multisig**  
MultisigSig is the structure that holds multiple Subsigs

object

**Subsigs**  
Array<object>

MultisigSubsig is a struct that holds a pair of public key and signatures signatures may be empty

object

**Key**  
PublicKey is an exported ed25519PublicKey

Array<integer>

**Sig**  
_Classical signatures_  
A Signature is a cryptographic signature. It proves that a message was produced by a holder of a cryptographic secret.

Array<integer>

**Threshold**  
integer format: uint8

**Version**  
integer format: uint8

**public_key**  
PublicKey is an exported ed25519PublicKey

Array<integer>

**signer**  
_Digest represents a 32-byte value holding the 256-bit Hash digest._

Array<integer>

**transaction**  
string format: byte

**wallet_handle_token**  
string

**wallet_password**  
string

## Responses

### 200

Response to `POST /v1/multisig/sign`

The list of MIME types the operation can produce application/json

APIV1POSTMultisigTransactionSignResponse is the response to `POST /v1/multisig/sign`

friendly: SignMultisigResponse

object

**error**  
boolean

**message**  
string

**multisig**  
string format: byte