​
Transaction Signing

Sign transaction payloads for different blockchain networks. The payload format varies by network type.

​
EVM Transaction Signing

Sign Ethereum and EVM-compatible chain transactions.
cURL
curl -X POST 'https://tee.magiclabs.com/v1/api/wallet/sign_transaction' \
  -H 'Content-Type: application/json' \
  -H 'x-magic-secret-key: sk_live_XXXXXXXX' \
  -d '{
    "payload": {
      "type": 2,
      "chainId": 888888,
      "nonce": 1,
      "value": "0x616263646566",
      "gas": 100000,
      "maxFeePerGas": 2000000000,
      "maxPriorityFeePerGas": 2000000000,
      "to": "0x0aA818d7952c0B6a56ee97581708866C154f63AD"
    },
    "encryption_context": "hashed_passcode",
    "access_key": "key_shard",
    "wallet_id": "wallet_id"
  }'

​
Solana Transaction Signing

Sign Solana blockchain transactions.
cURL
curl -X POST 'https://tee.magiclabs.com/v1/api/wallet/sign_transaction' \
  -H 'Content-Type: application/json' \
  -H 'x-magic-secret-key: sk_live_XXXXXXXX' \
  -d '{
    "payload": "transaction_base64",
    "encryption_context": "hashed_passcode",
    "access_key": "key_shard",
    "wallet_id": "wallet_id"
  }'

​
Bitcoin Transaction Signing

Sign Bitcoin blockchain transactions.
cURL
curl -X POST 'https://tee.magiclabs.com/v1/api/wallet/sign_transaction' \
  -H 'Content-Type: application/json' \
  -H 'x-magic-secret-key: sk_live_XXXXXXXX' \
  -d '{
    "payload": {
      "inputs": [
        {
          "address": "bc1q59ehj6mza09gk8v5558dqpy8m4c...",
          "value": 5,
          "txid": "d12beb629cebe086149c9c7b558f09531f8...",
          "tx_num": 0
        }
      ],
      "outputs": [
        {
          "address": "bc1q59ehj6mza09gk8v5558dqpy8m4c...",
          "value": 5
        }
      ]
    },
    "encryption_context": "hashed_passcode",
    "access_key": "key_shard",
    "wallet_id": "wallet_id"
  }'
Transaction Signing Response: 
{
  "data": {
    "signed_transaction": "0xabc...",
    "transaction_hash": "0xabc..."
  }
}

​
Request Parameters

​
payload
object
required
Body
Transaction payload to be signed. Format varies by network:
  • EVM: Standard Ethereum transaction object
  • Solana: Base64-encoded transaction string
  • Bitcoin: Object with inputs and outputs arrays
​
encryption_context
string
required
Body
The context used to decrypt key shards. Should match the context used during wallet creation.
​
access_key
string
required
Body
The access key shard for this wallet.
​
wallet_id
string
required
Body
The UUID of the wallet to sign with.

​
Response Fields

​
data.signed_transaction
string
The signed transaction ready for broadcast to the blockchain.
​
data.transaction_hash
string
The transaction hash that will be generated when the transaction is submitted to the network.

​
Message Signing

​
Sign Data

Sign arbitrary data using keccak256 hash.
cURL
curl -X POST 'https://tee.magiclabs.com/v1/api/wallet/sign_data' \
  -H 'Content-Type: application/json' \
  -H 'x-magic-secret-key: sk_live_XXXXXXXX' \
  -d '{
    "raw_data_hash": "keccak256_string_hash",
    "encryption_context": "hashed_passcode",
    "access_key": "key_shard",
    "wallet_id": "wallet_id"
  }'
Data Signing Response: 
{
  "data": {
    "messageHash": "0xabc...",
    "signature": "0xabc...",
    "r": "",
    "s": "",
    "v": ""
  }
}

​
Request Parameters

​
raw_data_hash
string
required
Body
The keccak256 hash of the data to sign
​
encryption_context
string
required
Body
The context used to decrypt key shards. Should match the context used during wallet creation.
​
access_key
string
required
Body
The access key shard for this wallet.
​
wallet_id
string
required
Body
The UUID of the wallet to sign with.

​
Response Fields

​
data.messageHash
string
The hash that was signed
​
data.signature
string
The complete signature in hex format
​
data.r
string
The r component of the ECDSA signature
​
data.s
string
The s component of the ECDSA signature
​
data.v
string
The recovery parameter of the ECDSA signature

​
Sign Message (Solana)

Sign an arbitrary message using a Solana wallet.
cURL
curl -X POST 'https://tee.magiclabs.com/v1/api/wallet/svm/sign_message' \
  -H 'Content-Type: application/json' \
  -H 'x-magic-secret-key: sk_live_XXXXXXXX' \
  -d '{
    "message_base64": "base64_string_hash",
    "encryption_context": "hashed_passcode",
    "access_key": "key_shard",
    "wallet_id": "wallet_id"
  }'
Solana Message Signing Response: 
{
  "data": {
    "signature": "base64_encoded"
  }
}

​
Request Parameters

​
message_base64
string
required
Body
The message to be signed, encoded in base64
​
encryption_context
string
required
Body
The context used to decrypt key shards. Should match the context used during wallet creation.
​
access_key
string
required
Body
The access key shard for this wallet.
​
wallet_id
string
required
Body
The UUID of the wallet to sign with.

​
Response Fields

​
data.signature
string
The signature in base64 format