Broadcast Transaction (Fireblocks)

Transaction Witness Creation for Fireblocks Users

This endpoint automatically creates the transaction witness for you. It’s designed for Fireblocks users—simply pass the Fireblocks signature array directly, with no need to manually generate witnesses. Refer to this recipe for implementation details.

Parameters

• network
  string
  enum
  required
  Allowed: mainnet, preprod

• unsigned_transaction_serialized
  string
  required
  Unsigned transaction serialized received from the staking endpoint.

• signed_messages
  array of objects
  required
  Signed messages received from Fireblocks response body

Example Request

curl --request POST \
     --url https://api.figment.io/cardano/broadcast/fireblocks \
     --header 'accept: application/json' \
     --header 'content-type: application/json' \
     --header 'x-api-key: your-api-key-here' \
     --data '{
  "network": "mainnet"
}'

Example Response

{
  "data": {
    "tx_hash": "aaf020d48ba7ade4a96488f49a206e56329e59b53c38ce5be10fe7594356fb9a"
  }
}