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POST
https://api.mpcvault.com
/
v1
/
executeSigningRequests
curl -X POST https://api.mpcvault.com/v1/executeSigningRequests \
  -H "Content-Type: application/json" \
  -H "x-mtoken: YOUR_API_TOKEN" \
  -d '{
    "uuid": "a1b2c3d4-e5f6-7890-abcd-ef1234567890"
  }'

{
  "txHash": "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
  "signedTransaction": "0x02f8...",
  "signatures": {
    "r": "0x...",
    "s": "0x...",
    "v": 28
  }
}
Executes and signs a pending signing request. Only API wallets with a configured client signer are supported.

​
Headers

​
x-mtoken
string
required
Your API token

​
Body

​
uuid
string
required
UUID of the signing request to execute

​
Response

​
txHash
string
Transaction hash of the signed transaction. Only set if signing succeeded. Note: This indicates the signing was successful, not that the blockchain transaction itself succeeded.
​
signatures
object
Signature container with the raw message signatures. Only set if signing succeeded.
​
signedTransaction
string
The signed transaction ready for broadcast. Only set if signing succeeded.
​
error
object
Error details (if failed)
curl -X POST https://api.mpcvault.com/v1/executeSigningRequests \
  -H "Content-Type: application/json" \
  -H "x-mtoken: YOUR_API_TOKEN" \
  -d '{
    "uuid": "a1b2c3d4-e5f6-7890-abcd-ef1234567890"
  }'

{
  "txHash": "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
  "signedTransaction": "0x02f8...",
  "signatures": {
    "r": "0x...",
    "s": "0x...",
    "v": 28
  }
}