Pregenerating wallets

With Privy, you can pregenerate self-custodial Ethereum and Solana embedded wallets for existing users, or create a new user with other login methods, like an email address or phone number, without requiring the user to login. You can even send assets to the wallet before the user logs in to your app for the first time.

Once the user associated with the account logs in, they will be able to access the pregenerated wallet and any assets sent to them.

Pregenerating wallets for new users

To pregenerate embedded wallets for a given user, use the importUser method from PrivyClient.

importUser: ({linkedAccounts: LinkedAccountType[], customMetadata?: CustomMetadataType, wallets?: WalletCreateRequestType[]}) => Promise<User>

Usage

const user = await privy.importUser({
    linkedAccounts: [
        {
        type: 'email',
        address: '[email protected]',
        },
    ],
    customMetadata: {
        username: 'name',
        isVerified: true,
        age: 23,
    },
    wallets: [
        {
            chainType: 'ethereum',
            createSmartWallet: true,
            additionalSigners: [
                {
                    signerId: '<signer-id>',
                    policyIds: ['<policy-id>']
                }
            ]
        },
        {
            chainType: 'solana',
            additionalSigners: [
                {
                    signerId: '<signer-id>',
                    policyIds: ['<policy-id>']
                }
            ]
        }
    ]
});

Params

linkedAccounts

LinkedAccountType[]

required

An array of linked accounts to associate with the user.

customMetadata

CustomMetadataType

(Optional) Custom metadata to associate with the user.

wallets

WalletCreateRequestType[]

(Optional) An array of wallets to create for the user.

Hide child attributes

chainType

'ethereum' | 'solana' | 'stellar' | 'cosmos' | 'sui'

required

The chain type of the wallet to create.

additionalSigners

object[]

Hide child attributes

signerId

string

The ID of the signer.

policyIds

string[]

List of policy IDs for policies that should be enforced on the wallet. Currently, only one policy is supported per wallet.

createSmartWallet

boolean

Set to true to create a smart wallet with the user’s wallet as the signer. Can only be set on wallets where chain_type is ethereum.

Returns

user

User

The user with the newly created wallets.

To pregenerate embedded wallets for a given user, use the importUser method from PrivyClient.

importUser: ({linkedAccounts: LinkedAccountType[], customMetadata?: CustomMetadataType, wallets?: WalletCreateRequestType[]}) => Promise<User>

Usage

const user = await privy.importUser({
    linkedAccounts: [
        {
        type: 'email',
        address: '[email protected]',
        },
    ],
    customMetadata: {
        username: 'name',
        isVerified: true,
        age: 23,
    },
    wallets: [
        {
            chainType: 'ethereum',
            createSmartWallet: true,
            additionalSigners: [
                {
                    signerId: '<signer-id>',
                    policyIds: ['<policy-id>']
                }
            ]
        },
        {
            chainType: 'solana',
            additionalSigners: [
                {
                    signerId: '<signer-id>',
                    policyIds: ['<policy-id>']
                }
            ]
        }
    ]
});

Params

linkedAccounts

LinkedAccountType[]

required

An array of linked accounts to associate with the user.

customMetadata

CustomMetadataType

(Optional) Custom metadata to associate with the user.

wallets

WalletCreateRequestType[]

(Optional) An array of wallets to create for the user.

Hide child attributes

chainType

'ethereum' | 'solana' | 'stellar' | 'cosmos' | 'sui'

required

The chain type of the wallet to create.

additionalSigners

object[]

Hide child attributes

signerId

string

The ID of the signer.

policyIds

string[]

List of policy IDs for policies that should be enforced on the wallet. Currently, only one policy is supported per wallet.

createSmartWallet

boolean

Set to true to create a smart wallet with the user’s wallet as the signer. Can only be set on wallets where chain_type is ethereum.

Returns

user

User

The user with the newly created wallets.

To pregenerate embedded wallets for a given user, make a POST request to https://auth.privy.io/api/v1/users.

Usage

Below is a sample cURL command for generating a new wallet for a user with Privy:

$ curl --request POST https://auth.privy.io/api/v1/users \
-u "<your-privy-app-id>:<your-privy-app-secret>" \
-H "privy-app-id: <your-privy-app-id>" \
-H "Content-Type: application/json" \
-d '{
        "wallets": [
            {
                "chain_type": "ethereum",
                "additional_signers": [
                    {
                        "signer_id": "<signer-id>",
                        "policy_ids": ["<policy-id>"]
                    }
                ]
            },
            {
                "chain_type": "solana",
                "additional_signers": [
                    {
                        "signer_id": "<signer-id>",
                        "policy_ids": ["<policy-id>"]
                    }
                ]
            }
        ],
        "linked_accounts": [
            {
                "address": "[email protected]",
                "type": "email"
            }
        ]
    }'

A successful response will include the new user object along with their user ID and embedded wallet address, like below:

    {
        "id": "did:privy:clddy332f002tyqpq3b3lv327",
        "created_at": 1674788927,
        "linked_accounts": [
            {
                "address": "[email protected]",
                "type": "email"
            },
            {
                "address": "0x3DAF84b3f09A0E2092302F7560888dBc0952b7B7",
                "type": "wallet",
                "walletClient": "privy",
                "chain_type": "ethereum"
            }
        ]
    }

Parameters

linked_accounts

LinkedAccountType[]

required

An array of linked accounts to associate with the user.

custom_metadata

CustomMetadataType

(Optional) Custom metadata to associate with the user.

wallets

WalletCreateRequestType[]

(Optional) An array of wallets to create for the user.

Hide child attributes

chain_type

'ethereum' | 'solana' | 'stellar' | 'cosmos' | 'sui'

required

The chain type of the wallet to create.

additional_signers

object[]

Hide child attributes

signer_id

string

The ID of the signer.

override_policy_ids

string[]

List of policy IDs for policies that should be enforced on the wallet. Currently, only one policy is supported per wallet.

create_smart_wallet

boolean

Set to true to create a smart wallet with the user’s wallet as the signer. Can only be set on wallets where chain_type is ethereum.

Creating wallets for existing users

To create embedded wallets for an existing user, use the createWallets method from PrivyClient.

createWallets: ({userId: string, wallets?: WalletCreateRequestType[]}) => Promise<User>

Usage

const user = await privy.createWallets({
    userId: 'did:privy:clddy332f002tyqpq3b3lv327',
    wallets: [
        {
            chainType: 'ethereum',
            createSmartWallet: true,
        },
        {
            chainType: 'solana',
        }
    ]
});

Params

userId

string

required

The Privy user ID to create wallets for.

wallets

WalletCreateRequestType[]

(Optional) An array of wallets to create for the user.

Hide child attributes

chainType

'ethereum' | 'solana' | 'stellar' | 'cosmos' | 'sui'

required

The chain type of the wallet to create.

additionalSigners

object[]

Hide child attributes

signerId

string

The ID of the signer.

policyIds

string[]

List of policy IDs for policies that should be enforced on the wallet. Currently, only one policy is supported per wallet.

createSmartWallet

boolean

Set to true to create a smart wallet with the user’s wallet as the signer. Can only be set on wallets where chainType is ethereum.

Returns

user

User

The user with the newly created wallets.

To create embedded wallets for an existing user, use the createWallets method from PrivyClient.

createWallets: ({userId: string, wallets?: WalletCreateRequestType[]}) => Promise<User>

Usage

const user = await privy.createWallets({
    userId: 'did:privy:clddy332f002tyqpq3b3lv327',
    wallets: [
        {
            chainType: 'ethereum',
            createSmartWallet: true,
        },
        {
            chainType: 'solana',
        }
    ]
});

Params

userId

string

required

The Privy user ID to create wallets for.

wallets

WalletCreateRequestType[]

(Optional) An array of wallets to create for the user.

Hide child attributes

chainType

'ethereum' | 'solana' | 'stellar' | 'cosmos' | 'sui'

required

The chain type of the wallet to create.

additionalSigners

object[]

Hide child attributes

signerId

string

The ID of the signer.

policyIds

string[]

List of policy IDs for policies that should be enforced on the wallet. Currently, only one policy is supported per wallet.

createSmartWallet

boolean

Set to true to create a smart wallet with the user’s wallet as the signer. Can only be set on wallets where chainType is ethereum.

Returns

user

User

The user with the newly created wallets.

To pregenerate embedded wallets for a given user, make a POST request to https://auth.privy.io/api/v1/apps/<your-app-id>/users/wallet.

Usage

Below is a sample cURL command for generating a new wallet for a user with Privy:

$ curl --request POST https://auth.privy.io/api/v1/apps/<your-privy-app-id>/users/wallet \
-u "<your-privy-app-id>:<your-privy-app-secret>" \
-H "privy-app-id: <your-privy-app-id>" \
-H "Content-Type: application/json" \
-d '{
"user_id": "did:privy:clddy332f002tyqpq3b3lv327",
"wallets": [
    {
        "chain_type": "ethereum",
        "additional_signers": [
            {
                "signer_id": "<signer-id>",
                "override_policy_ids": ["<policy-id>"]
            }
        ],
        "create_smart_wallet": true
    }
]
}'

A successful response will include the new user object along with their user ID and embedded wallet address, like below:

    {
        "id": "did:privy:clddy332f002tyqpq3b3lv327",
        "created_at": 1674788927,
        "linked_accounts": [
            {
                "address": "[email protected]",
                "type": "email"
            },
            {
                "address": "0x3DAF84b3f09A0E2092302F7560888dBc0952b7B7",
                "type": "wallet",
                "walletClient": "privy",
                "chain_type": "ethereum"
            }
        ]
    }

Parameters

user_id

string

required

The Privy user ID to create wallets for.

wallets

WalletCreateRequestType[]

(Optional) An array of wallets to create for the user.

Hide child attributes

chain_type

'ethereum' | 'solana' | 'stellar' | 'cosmos' | 'sui'

required

The chain type of the wallet to create.

additional_signers

object[]

Hide child attributes

signer_id

string

The ID of the signer.

override_policy_ids

string[]

List of policy IDs for policies that should be enforced on the wallet. Currently, only one policy is supported per wallet.

create_smart_wallet

boolean

Set to true to create a smart wallet with the user’s wallet as the signer. Can only be set on wallets where chain_type is ethereum.

On this page

Pregenerating wallets for new users
Creating wallets for existing users

Once the user associated with the account logs in, they will be able to access the pregenerated wallet and any assets sent to them.