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POST
/
v1
/
wallets
/
{id}
/
signing
/
message
Master Wallet Sign Message
curl --request POST \
  --url https://api.blockradar.co/v1/wallets/{id}/signing/message \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "message": "Please sign this message to verify your wallet ownership for Iron provider registration.",
  "reference": "iron-verification-001",
  "metadata": {
    "provider": "iron",
    "purpose": "wallet-verification"
  }
}
'
{
  "data": {
    "id": "770f9100-7338-4823-b1ce-3658fc67db09",
    "hash": "0xdb095e6cbf235d630cee43e0953e60c351e46897bc4e65abfce3e975810e21335aa3918399dac1e01badb2dc8c59c171e65d0c328c92737de702da9d76b889b31b",
    "status": "SUCCESS",
    "type": "SIGNED",
    "senderAddress": "0x947514e4B803e312C312da0F1B41fEDdbe15ae7a",
    "recipientAddress": "0x947514e4B803e312C312da0F1B41fEDdbe15ae7a",
    "signedTransaction": {
      "r": "0xdb095e6cbf235d630cee43e0953e60c351e46897bc4e65abfce3e975810e2133",
      "s": "0x5aa3918399dac1e01badb2dc8c59c171e65d0c328c92737de702da9d76b889b3",
      "v": 27,
      "signature": "0xdb095e6cbf235d630cee43e0953e60c351e46897bc4e65abfce3e975810e21335aa3918399dac1e01badb2dc8c59c171e65d0c328c92737de702da9d76b889b31b"
    },
    "reference": "iron-verification-001",
    "metadata": {
      "provider": "iron",
      "purpose": "wallet-verification"
    },
    "confirmed": true,
    "network": "testnet",
    "reason": "Please sign this message to verify your wallet ownership for Iron provider registration.",
    "blockchain": {
      "id": "85ffc132-3972-4c9e-99a5-5cf0ccb688bf",
      "name": "ethereum",
      "slug": "ethereum"
    },
    "wallet": {
      "id": "d236a191-c1d4-423c-a439-54ce6542ca41",
      "name": "Ethereum Master Wallet",
      "address": "0x947514e4B803e312C312da0F1B41fEDdbe15ae7a"
    },
    "createdAt": "2025-03-02T19:00:52.000Z"
  },
  "message": "Message signed successfully",
  "statusCode": 200
}

Authorizations

​
x-api-key
string
header
required

Path Parameters

​
id
string
required
Example:

"YOUR_WALLET_ID"

Body

application/json
​
message
string
required

The plain text message to sign

Maximum string length: 4096
Example:

"Please sign this message to verify your wallet ownership for Iron provider registration."

​
reference
string

Internal tracking ID for idempotency

Example:

"iron-verification-001"

​
metadata
object

Custom key-value pairs stored with the transaction

Example:
{
  "provider": "iron",
  "purpose": "wallet-verification"
}

Response

Message signed successfully

​
data
object
​
message
string
Example:

"Message signed successfully"

​
statusCode
number
Example:

200