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personal
APIs to manage accounts and private keys in the node.
The namespace personal manages private keys in the key store.

personal_importRawKey

Imports the given unencrypted private key (hex string without leading '0x') or a Klaytn wallet key into the key store, encrypting it with the passphrase.
Returns the address of the imported account.
Client
Method invocation
Console
personal.importRawKey(keydata, passphrase)
RPC
{"method": "personal_importRawKey", "params": [keydata, passphrase]}
Parameters
Name
Type
Description
keydata
string
The unencrypted private key (hex string without leading '0x') or a Klaytn wallet key.
passphrase
string
The pass phrase for encryption.
Return Value
Name
Type
Description
address
string
The address of the imported account.
Example
Console
1
> personal.importRawKey('{private key}', 'mypassword')
2
"0xfa415bb3e6231f488ff39eb2897db0ef3636dd32"
3
​
4
// Using a Klaytn wallet key
5
> personal.importRawKey('{private key}0x000x{address}', 'mypassword')
6
"0xfa415bb3e6231f488ff39eb2897db0ef3636dd32"
Copied!
HTTP RPC
1
$ curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"personal_importRawKey","params":["{private key}", "mypassword"],"id":1}' https://api.baobab.klaytn.net:8651
2
{"jsonrpc":"2.0","id":1,"result":"0xda04fb00e2cb5745cef7d8c4464378202a1673ef"}
3
$ curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"personal_importRawKey","params":["{private key}0x000x{address}", "mypassword"],"id":1}' https://api.baobab.klaytn.net:8651
4
{"jsonrpc":"2.0","id":1,"result":"0xda04fb00e2cb5745cef7d8c4464378202a1673ef"}
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personal_listAccounts

Returns all the Klaytn account addresses of all keys in the key store.
Client
Method invocation
Console
personal.listAccounts
RPC
{"method": "personal_listAccounts", "params": []}
Parameters
None
Return Value
Type
Description
string
The list of all the Klaytn account addresses
None
Example
Console
1
> personal.listAccounts
2
["0x5e97870f263700f46aa00d967821199b9bc5a120", "0x3d80b31a78c30fc628f20b2c89d7ddbf6e53cedc"]
Copied!
HTTP RPC
1
$ curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"personal_listAccounts","params":[],"id":1}' https://api.baobab.klaytn.net:8651
2
{"jsonrpc":"2.0","id":1,"result":["0xd8d81f52b595cc6135177c9c34ae6130ecad4636","0xda04fb00e2cb5745cef7d8c4464378202a1673ef"]}
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personal_listWallets

Returns a list of wallets this node manages.
Client
Method invocation
Console
personal.listWallets
RPC
{"method": "personal_listWallets", "params": []}
Parameters
None
Return Value
Name
Type
Description
URL
string
Wallet url
Status
string
Locking status
Failure
string
Error condition
Accounts
string
The list of account addresses.
Example
Console
1
> personal.listWallets
2
[
3
{
4
"url":"keystore:///",
5
"status":"Locked",
6
"accounts":[{"address":"0x336010a2f91728ffe01414a87ae5d8af55f310c6","url":"keystore://"}]
7
},
8
...
9
]
Copied!
HTTP RPC
1
$ curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"personal_listWallets","params":[],"id":1}' https://api.baobab.klaytn.net:8651
2
{"jsonrpc":"2.0","id":1,"result":[{"url":"keystore:///","status":"Locked","accounts":[{"address":"0x336010a2f91728ffe01414a87ae5d8af55f310c6","url":"keystore://"}]}]}
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personal_openWallet

Initiates a hardware wallet opening procedure, establishing a USB connection and attempting to authenticate via the provided passphrase.
NOTE: The method may return an extra challenge requiring a second open (e.g., the Trezor PIN matrix challenge).
Client
Method invocation
Console
personal.openWallet(url, passhrase)
RPC
{"method": "personal_openWallet", "params": [url, passphrase]}
Parameters
Name
Type
Description
URL
string
Wallet url
Passphrase
string
passphrase for wallet
Return Value
Name
Type
Description
Error
error
Error condition
Example
Console
1
> personal.openWallet("keystore://", "passphrase")
2
null
Copied!
HTTP RPC
1
$ curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"personal_openWallet","params":["keystore://", "passphrase"],"id":1}' https://api.baobab.klaytn.net:8651
2
{"jsonrpc":"2.0","id":1,"result":null}
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personal_deriveAccount

Requests a HD wallet to derive a new account, optionally pinning it for later reuse.
Client
Method invocation
Console
personal.deriveAccount(url, path, pin)
RPC
{"method": "personal_deriveAccount", "params": [url, path, pin]}
Parameters
Name
Type
Description
URL
string
Wallet url
path
string
derivation path
pin
boolean
optionally pinning
Return Value
Name
Type
Description
Account
string
The address of the new account.
Error
error
Error condition
Example
Console
1
> personal.deriveAccount(url, path, pin)
2
"result":"0xed1b12248aee85a32aead06c7789d3fcdcd4dae6"
Copied!
HTTP RPC
1
$ curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"personal_deriveAccount","params":[url, path, pin],"id":1}' https://api.baobab.klaytn.net:8651
2
{"jsonrpc":"2.0","id":1,"result":"0xed1b12248aee85a32aead06c7789d3fcdcd4dae6"}
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personal_newAccount

Generates a new private key and stores it in the key store directory. The key file is encrypted with the given passphrase. Returns the address of the new account.
At the Klaytn console, newAccount will prompt for a passphrase when it is not supplied as the argument.
Client
Method invocation
Console
personal.newAccount(passphrase)
RPC
{"method": "personal_newAccount", "params": [passphrase]}
Parameters
Name
Type
Description
passphrase
string
(optional) the pass phrase used for encryption.
Return Value
Type
Description
string
The address of the new account.
Example
Console
1
> personal.newAccount()
2
Passphrase:
3
Repeat passphrase:
4
"0x5e97870f263700f46aa00d967821199b9bc5a120"
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The passphrase can also be supplied as a string.
1
> personal.newAccount("h4ck3r")
2
"0x3d80b31a78c30fc628f20b2c89d7ddbf6e53cedc"
Copied!
HTTP RPC
1
$ curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"personal_newAccount","params":["helloWorld"],"id":1}' https://api.baobab.klaytn.net:8651
2
{"jsonrpc":"2.0","id":1,"result":"0xed1b12248aee85a32aead06c7789d3fcdcd4dae6"}
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personal_lockAccount

Removes the private key with a given address from memory. The account can no longer be used to send transactions.
Client
Method invocation
Console
personal.lockAccount(address)
RPC
{"method": "personal_lockAccount", "params": [address]}
Parameters
Name
Type
Description
address
string
The account address to lock.
Return Value
Type
Description
bool
true if the account was successfully locked, false otherwise.
Example
Console
1
> personal.lockAccount("0xfa415bb3e6231f488ff39eb2897db0ef3636dd32")
2
true
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HTTP RPC
1
$ curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"personal_lockAccount","params":["0xda04fb00e2cb5745cef7d8c4464378202a1673ef"],"id":1}' https://api.baobab.klaytn.net:8651
2
{"jsonrpc":"2.0","id":1,"result":true}
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personal_unlockAccount

Decrypts the key with the given address from the key store.
Both passphrase and unlock duration are optional when using the JavaScript console. If the passphrase is not supplied as an argument, the console will prompt for the passphrase interactively.
The unencrypted key will be held in memory until the unlock duration expires. If the unlock duration defaults to 300 seconds. An explicit duration of zero seconds unlocks the key until the Klaytn local node exits.
The account can be used with klay_sign and klay_sendTransaction while it is unlocked.
Client
Method invocation
Console
personal.unlockAccount(address, passphrase, duration)
RPC
{"method": "personal_unlockAccount", "params": [address, passphrase, duration]}
Parameters
Name
Type
Description
address
string
The account address to unlock.
passphrase
string
the passphrase used for the encryption.
duration
int
(optional) the unlock duration (default to 300 seconds).
Return Value
Type
Description
bool
true if unlocked, false otherwise
Example
Console
1
> personal.unlockAccount("0x5e97870f263700f46aa00d967821199b9bc5a120")
2
Unlock account 0x5e97870f263700f46aa00d967821199b9bc5a120
3
Passphrase:
4
true
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Supplying the passphrase and unlock duration as arguments:
1
> personal.unlockAccount("0x5e97870f263700f46aa00d967821199b9bc5a120", "foo", 30)
2
true
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If you want to type in the passphrase and still override the default unlock duration, pass null as the passphrase.
1
> personal.unlockAccount("0x5e97870f263700f46aa00d967821199b9bc5a120", null, 30)
2
Unlock account 0x5e97870f263700f46aa00d967821199b9bc5a120
3
Passphrase:
4
true
Copied!
HTTP RPC
1
$ curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"personal_unlockAccount","params":["0xda04fb00e2cb5745cef7d8c4464378202a1673ef","mypassword"],"id":1}' https://api.baobab.klaytn.net:8651
2
{"jsonrpc":"2.0","id":1,"result":true}
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personal_replaceRawKey

Replaces the encrypted key file in the key store with the given unencrypted private key (hex string without leading '0x') or a Klaytn wallet key, encrypting it with the new passphrase. It also receives the old passphrase to decrypt the old private key before replacement. If it is failed to decrypt, or can not find the matching account, it throws an error.
Returns the address of the replaced account if successful.
Client
Method invocation
Console
personal.replaceRawKey(keydata, oldPassphrase, newPassphrase)
RPC
{"method": "personal_replaceRawKey", "params": [keydata, oldPassphrase, newPassphrase]}
Parameters
Name
Type
Description
keydata
string
The unencrypted private key (hex string without leading '0x') or a Klaytn wallet key.
oldPassphrase
string
The passphrase to decrypt the old private key.
newPassphrase
string
The passphrase to encrypt the new private key.
Return Value
Name
Type
Description
address
string
The address of the replaced account.
Example
Console
1
> personal.replaceRawKey('{private key}', 'myoldpassword', 'mypassword')
2
"0xfa415bb3e6231f488ff39eb2897db0ef3636dd32"
3
> personal.replaceRawKey('{private key}0x000x{address}', 'myoldpassword', 'mypassword')
4
"0xfa415bb3e6231f488ff39eb2897db0ef3636dd32"
Copied!
HTTP RPC
1
$ curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"personal_replaceRawKey","params":["{private key}", "myoldpassword", mypassword"],"id":1}' https://api.baobab.klaytn.net:8651
2
{"jsonrpc":"2.0","id":1,"result":"0xda04fb00e2cb5745cef7d8c4464378202a1673ef"}
3
$ curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"personal_replaceRawKey","params":["{private key}0x000x{address}", "myoldpassword", mypassword"],"id":1}' https://api.baobab.klaytn.net:8651
4
{"jsonrpc":"2.0","id":1,"result":"0xda04fb00e2cb5745cef7d8c4464378202a1673ef"}
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personal_sendAccountUpdate

Validates the given passphrase and submits a TxTypeAccountUpdate transaction. The transaction object must have fields from and key. Other fields such as gas, gasPrice, and nonce are se internally if unspecified. If the passphrase is able to decrypt the private key belonging to tx.from and the transaction is verified, the transaction is signed and submitted onto the network. The account is not unlocked globally in the node and cannot be used in other RPC calls.
Client
Method invocation
Console
personal.sendAccountUpdate(tx, passphrase)
RPC
{"method": "personal_sendAccountUpdate", "params": [tx, passphrase]}
Parameters
Name
Type
Description
tx
string
A transaction object. from and key must be specified.
passphrase
string
The passphrase to decrypt the private key of tx.from.
Return Value
Type
Description
32-byte string
a transaction hash if succeeded. Otherwise, an error is raised.
Example
Console
1
> var tx = {from: "0x391694e7e0b0cce554cb130d723a9d27458f9298", key:"0x02a102dbac81e8486d68eac4e6ef9db617f7fbd79a04a3b323c982a09cdfc61f0ae0e8"}
2
undefined
3
> personal.sendAccountUpdate(tx, "passphrase")
4
0x8474441674cdd47b35b875fd1a530b800b51a5264b9975fb21129eeb8c18582f
Copied!
HTTP RPC
NOTE: The function klay.toPeb() is not executable in HTTP RPC.
1
$ curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"personal_sendAccountUpdate","params":[{"from":"0x1d4e05bb72677cb8fa576149c945b57d13f855e4","key":"0x02a102dbac81e8486d68eac4e6ef9db617f7fbd79a04a3b323c982a09cdfc61f0ae0e8"}, "passphrase"],"id":1}' https://api.baobab.klaytn.net:8651
2
{"jsonrpc":"2.0","id":1,"result":"0x26a7a8ba619a5e3e4d742c217f55f49591a5616b200c976bd58a966a05e294b7"}
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personal_sendTransaction

Validates the given passphrase and submits a TxTypeLegacy transaction. The transaction object must have from and to except the case of contract deployment. to should be omitted if the transaction deploys a smart contract. If value is not specified, it will be set to zero internally. Other fields such as gas, gasPrice, and nonce are set to appropriate values internally if unspecified. If the passphrase is able to decrypt the private key belonging to tx.from and the transaction is verified, the transaction is signed and submitted onto the network. The account is not unlocked globally in the node and cannot be used in other RPC calls.
Client
Method invocation
Console
personal.sendTransaction(tx, passphrase)
RPC
{"method": "personal_sendTransaction", "params": [tx, passphrase]}
Parameters
Name
Type
Description
tx
string
A transaction object. from is a required field. to, value, gas, gasPrice and nonce are optional fields.
passphrase
string
The passphrase to decrypt the private key of tx.from.
Return Value
Type
Description
32-byte string
a transaction hash if succeeded. Otherwise, an error is raised.
Example
Console
1
> var tx = {from: "0x391694e7e0b0cce554cb130d723a9d27458f9298", to: "0xafa3f8684e54059998bc3a7b0d2b0da075154d66", value: klay.toPeb(1.23, "KLAY")}
2
undefined
3
> personal.sendTransaction(tx, "passphrase")
4
0x8474441674cdd47b35b875fd1a530b800b51a5264b9975fb21129eeb8c18582f
Copied!
HTTP RPC
NOTE: The function klay.toPeb() is not executable in HTTP RPC.
1
$ curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"personal_sendTransaction","params":[{"from":"0x1d4e05bb72677cb8fa576149c945b57d13f855e4","to":"0xafa3f8684e54059998bc3a7b0d2b0da075154d66","value":"0x1230000000"},"passphrase"],"id":1}' https://api.baobab.klaytn.net:8651
2
{"jsonrpc":"2.0","id":1,"result":"0x26a7a8ba619a5e3e4d742c217f55f49591a5616b200c976bd58a966a05e294b7"}
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personal_sendValueTransfer

Validates the given passphrase and submits a TxTypeValueTransfer transaction. The transaction object must have fields from, to, and value. Other fields such as gas, gasPrice, and nonce are set internally if unspecified. If the passphrase is able to decrypt the private key belonging to tx.from and the transaction is verified, the transaction is signed and submitted onto the network. The account is not unlocked globally in the node and cannot be used in other RPC calls.
Client
Method invocation
Console
personal.sendValueTransfer(tx, passphrase)
RPC
{"method": "personal_sendValueTransfer", "params": [tx, passphrase]}
Parameters
Name
Type
Description
tx
string
A transaction object. from, to, and value must be specified.
passphrase
string
The passphrase to decrypt the private key of tx.from.
Return Value
Type
Description
32-byte string
a transaction hash if succeeded. Otherwise, an error is raised.
Example
Console
1
> var tx = {from: "0x391694e7e0b0cce554cb130d723a9d27458f9298", to: "0xafa3f8684e54059998bc3a7b0d2b0da075154d66", value: klay.toPeb(1.23, "KLAY")}
2
undefined
3
> personal.sendValueTransfer(tx, "passphrase")
4
0x8474441674cdd47b35b875fd1a530b800b51a5264b9975fb21129eeb8c18582f
Copied!
HTTP RPC
NOTE: The function klay.toPeb() is not executable in HTTP RPC.
1
$ curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"personal_sendValueTransfer","params":[{"from":"0x1d4e05bb72677cb8fa576149c945b57d13f855e4","to":"0xafa3f8684e54059998bc3a7b0d2b0da075154d66","value":"0x1230000000"},"passphrase"],"id":1}' https://api.baobab.klaytn.net:8651
2
{"jsonrpc":"2.0","id":1,"result":"0x26a7a8ba619a5e3e4d742c217f55f49591a5616b200c976bd58a966a05e294b7"}
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personal_sign

The sign method calculates a Klaytn-specific signature with: sign(keccak256("\x19Klaytn Signed Message:\n" + len(message) + message)))
Adding a prefix to the message makes the calculated signature recognizable as a Klaytn-specific signature. This prevents misuse where a malicious DApp can sign arbitrary data (e.g., transaction) and use the signature to impersonate the victim.
See personal_ecRecover to verify the signature.
Client
Method invocation
Console
personal.sign(message, account, password)
RPC
{"method": "personal_sign", "params": [message, account, password]}
Parameters
Name
Type
Description
message
string
A message to sign.
account
string
The account address.
password
string
The pass phrase used for signing.
Return Value
Type
Description
string
A signature.
Example
Console
1
> personal.sign("0xdeadbeaf", "0x9b2055d370f73ec7d8a03e965129118dc8f5bf83", "")
2
"0xa3f20717a250c2b0b729b7e5becbff67fdaef7e0699da4de7ca5895b02a170a12d887fd3b17bfdce3481f10bea41f45ba9f709d39ce8325427b57afcfc994cee1b"
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HTTP RPC
1
$ curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"personal_sign","params":["0xdead","0xda04fb00e2cb5745cef7d8c4464378202a1673ef","mypassword"],"id":1}' https://api.baobab.klaytn.net:8651
2
{"jsonrpc":"2.0","id":1,"result":"0xccb8cce176b01fdc8f7ac3c101b8eb3b9005e938a60800e517624419dd8b7fba0e4598bdf1c4fa1743e1288e89b8b7090cc11f4b3640aafcbc71896ec73eec241b"}
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personal_signTransaction

Sets default configuration and signs the given transaction.
NOTE: Sending your account password over an unsecured HTTP RPC connection is highly unsecure. Use klay_signTransaction.
Parameters
The required parameters depend on the transaction type. Check the proper parameters in Working with Klaytn Transaction Types.
Return Value
Type
Description
raw
Signed raw transaction
tx
Transaction object
password
Sender's password

personal_ecRecover

ecRecover returns the address associated with the private key that was used to calculate the signature in personal_sign.
Client
Method invocation
Console
personal.ecRecover(message, signature)
RPC
{"method": "personal_ecRecover", "params": [message, signature]}
Parameters
Name
Type
Description
message
string
A message.
signature
string
The signature.
Return Value
Type
Description
string
The account address.
Example
Console
1
> personal.sign("0xdeadbeaf", "0x9b2055d370f73ec7d8a03e965129118dc8f5bf83", "")
2
"0xa3f20717a250c2b0b729b7e5becbff67fdaef7e0699da4de7ca5895b02a170a12d887fd3b17bfdce3481f10bea41f45ba9f709d39ce8325427b57afcfc994cee1b"
3
> personal.ecRecover("0xdeadbeaf", "0xa3f20717a250c2b0b729b7e5becbff67fdaef7e0699da4de7ca5895b02a170a12d887fd3b17bfdce3481f10bea41f45ba9f709d39ce8325427b57afcfc994cee1b")
4
"0x9b2055d370f73ec7d8a03e965129118dc8f5bf83"
Copied!
HTTP RPC
1
$ curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"personal_sign","params":["0xdead","0xda04fb00e2cb5745cef7d8c4464378202a1673ef","mypassword"],"id":1}' https://api.baobab.klaytn.net:8651
2
{"jsonrpc":"2.0","id":1,"result":"0xccb8cce176b01fdc8f7ac3c101b8eb3b9005e938a60800e517624419dd8b7fba0e4598bdf1c4fa1743e1288e89b8b7090cc11f4b3640aafcbc71896ec73eec241b"}
3
​
4
$ curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"personal_ecRecover","params":["0xdead","0xccb8cce176b01fdc8f7ac3c101b8eb3b9005e938a60800e517624419dd8b7fba0e4598bdf1c4fa1743e1288e89b8b7090cc11f4b3640aafcbc71896ec73eec241b"],"id":1}' https://api.baobab.klaytn.net:8651
5
{"jsonrpc":"2.0","id":1,"result":"0xda04fb00e2cb5745cef7d8c4464378202a1673ef"}
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Contents
personal_importRawKey
personal_listAccounts
personal_listWallets
personal_openWallet
personal_deriveAccount
personal_newAccount
personal_lockAccount
personal_unlockAccount
personal_replaceRawKey
personal_sendAccountUpdate
personal_sendTransaction
personal_sendValueTransfer
personal_sign
personal_signTransaction
personal_ecRecover