Create Virtual Card for Authorized User

Create a virtual card on behalf of an authorized user on the caller’s account. Pass the authorized user’s authUserId (the UAC role assignment ID returned by addAuthorizedUser) to create the card for that user’s underlying cardholder record while keeping the card scoped to the caller’s account. The authUserId must belong to the caller’s account, must be ACTIVE, and cannot be an OWNER assignment. If addAuthorizedUser returns PENDING, the authorized user must accept the invite before this mutation can use that authUserId. Virtual card creation can use a saved billing address (userAddressId) or an inline billingAddress. For select offers, providing either address value triggers billing-address registration with the card issuer before the card is issued. If issuer approval is still pending after the server-side wait window, the mutation returns GraphQL error code VC-0020 with extensions.addressId; retry with that value as userAddressId. 🔒 Restricted Access This mutation requires a Bearer token with the CREATE_VIRTUALCARD scope.

mutation CreateVirtualCard($input: CreateVirtualCardInput!) {
  createVirtualCard(input: $input) {
    virtualCardId
    userId
    cardholderName
    expiryMonth
    expiryYear
    virtualCardLast4
    status
    cardType
    initialAmount
    usedAmount
    createdAt
    authorizationSetting {
      lockDate
      dailySpendLimit
      weeklySpendLimit
      monthlySpendLimit
    }
  }
}

Parameters

Parameter	Type	Required	Description
input	CreateVirtualCardInput!	Yes	Wrapper object for the virtual card creation request.
input.idempotencyKey	UUID!	Yes	Unique client-generated UUID. The same key prevents the same request from being processed more than once.
input.spendLimit	Float!	Yes	Maximum amount that can be charged to the card. Minimum is `$5`; at most two decimal places are allowed.
input.offerId	UUID	Yes	Virtual card offer ID. Use `getVirtualCardOffers` to fetch active offers.
input.authUserId	UUID	No	Authorized user ID (UAC role assignment ID) to create the card on behalf of. Must be ACTIVE and non-owner.
input.userAddressId	UUID	No	Saved billing address ID for the caller or authorized cardholder. Takes precedence over `billingAddress`.
input.billingAddress	VirtualCardBillingAddressInput	No	New billing address to save and register with the card program before issuing the card.
input.spendLimitDuration	VirtualCardSpendLimitDuration	No	Card limit duration. Defaults to `LIFETIME`.
input.lockDate	String	No	Future lock date. Defaults to 47 months from the request date.
input.lockCardNextUse	Boolean	No	Whether to lock the card after the next use. Defaults to `false`.
input.cardNickname	String	No	Card nickname. Must be 1-50 characters when provided.
input.primaryFundingSource	VirtualCardFundingSource	No	Primary funding source. Defaults to `FLUZ_BALANCE`. If `BANK_ACCOUNT`, `bankAccountId` is required.
input.bankAccountId	UUID	No	Bank account ID used when `primaryFundingSource` is `BANK_ACCOUNT`.
input.userCashBalanceId	UUID	No	Spend account ID to attach to the card.
input.usePrepaymentBalance	Boolean	No	When `false`, the card will not draw from prepaid balance. Defaults to `true`.
input.useRewardsBalance	Boolean	No	When `false`, the card will not draw from rewards balance. Defaults to `true`.
input.memo	String	No	Optional note attached to the transaction. Maximum 255 characters.
input.transactionCategory	String	No	Optional category name. A matching category is found or created for the account. Maximum 100 characters.

Response

Success Response

{
  "data": {
    "createVirtualCard": {
      "virtualCardId": "6d9f0d0f-21f0-4ad1-8fc7-2fb7dd58ce11",
      "userId": "f1320ac4-52dc-4c67-9e80-24e506b18450",
      "cardholderName": "Ada Lovelace",
      "expiryMonth": "08",
      "expiryYear": "2029",
      "virtualCardLast4": "4242",
      "status": "ACTIVE",
      "cardType": "MULTI_USE",
      "initialAmount": 100,
      "usedAmount": 0,
      "createdAt": "2026-05-15T15:18:00.000Z",
      "authorizationSetting": {
        "lockDate": "2029-08-15",
        "dailySpendLimit": null,
        "weeklySpendLimit": null,
        "monthlySpendLimit": null
      }
    }
  }
}

Response Fields

Field	Type	Description
`virtualCardId`	UUID	Created virtual card ID.
`userId`	UUID	User ID of the cardholder. When `authUserId` is provided, this is the authorized user’s user ID.
`cardholderName`	String	Cardholder name shown on the virtual card.
`expiryMonth`	String	Virtual card expiration month.
`expiryYear`	String	Virtual card expiration year.
`virtualCardLast4`	String	Last 4 digits of the virtual card number.
`status`	String	Virtual card status, such as `ACTIVE`.
`cardType`	String	Virtual card type.
`initialAmount`	Float	Initial spend limit requested for the card.
`usedAmount`	Float	Amount already spent on the card.
`createdAt`	DateTime	Time when the card was created.
`authorizationSetting`	Object	Authorization settings attached to the virtual card.

Example Requests

Create a card for an authorized user with a saved address:

curl -X POST https://transactional-graph.staging.fluzapp.com/api/v1/graphql \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer <your_access_token>" \
  -d '{
  "query": "mutation CreateVirtualCard($input: CreateVirtualCardInput!) { createVirtualCard(input: $input) { virtualCardId userId cardholderName virtualCardLast4 status cardType initialAmount usedAmount createdAt } }",
  "variables": {
    "input": {
      "idempotencyKey": "931e8841-cf23-4f36-8bf8-169384042ec2",
      "offerId": "09a9c8d1-9c4b-46fa-8a7a-508812a2a0d9",
      "authUserId": "8b2c1e0a-7d4f-4a9b-9c2d-1f3e4a5b6c7d",
      "userAddressId": "1f6b2c3d-4e5f-4a67-9a10-2b3c4d5e6f70",
      "spendLimit": 100,
      "spendLimitDuration": "LIFETIME",
      "cardNickname": "Ada Travel Card",
      "primaryFundingSource": "FLUZ_BALANCE"
    }
  }
}'

Create a card for an authorized user with a new inline billing address:

curl -X POST https://transactional-graph.staging.fluzapp.com/api/v1/graphql \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer <your_access_token>" \
  -d '{
  "query": "mutation CreateVirtualCard($input: CreateVirtualCardInput!) { createVirtualCard(input: $input) { virtualCardId userId cardholderName virtualCardLast4 status cardType initialAmount usedAmount createdAt } }",
  "variables": {
    "input": {
      "idempotencyKey": "c20341f0-47e3-4d52-8361-1d7c37736b65",
      "offerId": "09a9c8d1-9c4b-46fa-8a7a-508812a2a0d9",
      "authUserId": "8b2c1e0a-7d4f-4a9b-9c2d-1f3e4a5b6c7d",
      "spendLimit": 100,
      "billingAddress": {
        "streetAddressLine1": "456 Market St",
        "streetAddressLine2": "Suite 200",
        "country": "United States",
        "city": "San Francisco",
        "state": "CA",
        "postalCode": "94105"
      }
    }
  }
}'

const response = await fetch('https://transactional-graph.staging.fluzapp.com/api/v1/graphql', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    Authorization: `Bearer ${accessToken}`,
  },
  body: JSON.stringify({
    query: `
      mutation CreateVirtualCard(
        $input: CreateVirtualCardInput!
      ) {
        createVirtualCard(input: $input) {
          virtualCardId
          userId
          cardholderName
          virtualCardLast4
          status
          cardType
          initialAmount
          usedAmount
          createdAt
        }
      }
    `,
    variables: {
      input: {
        idempotencyKey: '931e8841-cf23-4f36-8bf8-169384042ec2',
        offerId: '09a9c8d1-9c4b-46fa-8a7a-508812a2a0d9',
        authUserId: '8b2c1e0a-7d4f-4a9b-9c2d-1f3e4a5b6c7d',
        userAddressId: '1f6b2c3d-4e5f-4a67-9a10-2b3c4d5e6f70',
        spendLimit: 100,
        spendLimitDuration: 'LIFETIME',
        cardNickname: 'Ada Travel Card',
        primaryFundingSource: 'FLUZ_BALANCE',
      },
    },
  }),
});

const data = await response.json();

if (data.errors?.[0]?.extensions?.code === 'VC-0020') {
  const userAddressId = data.errors[0].extensions.addressId;
  console.log('Billing address pending issuer approval. Retry with userAddressId:', userAddressId);
} else {
  console.log('Virtual card created:', data.data.createVirtualCard);
}

Full Flow: Register User, Add Authorized User, Add Address, Create Card

This flow registers a new Fluz user, adds that user to the caller’s account as an authorized user, saves a billing address for that authorized cardholder, then creates a virtual card on their behalf. Step 1: Register the user. This requires a Bearer token for the developer user of an ACTIVE application with registration enabled.

curl -X POST https://transactional-graph.staging.fluzapp.com/api/v1/graphql \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer <developer_access_token>" \
  -d '{
  "query": "mutation RegisterUser($firstName: String!, $lastName: String!, $phoneNumber: String!, $regionCode: String!, $emailAddress: String!, $dateOfBirth: String!, $billingAddress: VirtualCardBillingAddressInput!, $acceptCardholderAgreement: Boolean!) { registerUser(firstName: $firstName, lastName: $lastName, phoneNumber: $phoneNumber, regionCode: $regionCode, emailAddress: $emailAddress, dateOfBirth: $dateOfBirth, billingAddress: $billingAddress, acceptCardholderAgreement: $acceptCardholderAgreement) { success error { code message } } }",
  "variables": {
    "firstName": "Ada",
    "lastName": "Lovelace",
    "phoneNumber": "5555555555",
    "regionCode": "US",
    "emailAddress": "ada.lovelace@example.com",
    "dateOfBirth": "1990-01-31",
    "billingAddress": {
      "streetAddressLine1": "1600 Amphitheatre Pkwy",
      "city": "Mountain View",
      "state": "CA",
      "postalCode": "94043",
      "country": "United States"
    },
    "acceptCardholderAgreement": true
  }
}'

Step 2: Add the registered user as an authorized user on the caller’s account.

curl -X POST https://transactional-graph.staging.fluzapp.com/api/v1/graphql \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer <account_owner_access_token>" \
  -d '{
  "query": "mutation AddAuthorizedUser($email: String, $roles: [UACRoleType!]!) { addAuthorizedUser(email: $email, roles: $roles) { success authUserId roles status pendingActionId error { code message } } }",
  "variables": {
    "email": "ada.lovelace@example.com",
    "roles": ["SPENDER"]
  }
}'

Continue only after the returned status is ACTIVE. If the status is PENDING, the authorized user must accept the invite before addVirtualCardAddress or createVirtualCard can use the returned authUserId. Step 3: Save the authorized user’s billing address.

curl -X POST https://transactional-graph.staging.fluzapp.com/api/v1/graphql \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer <account_owner_access_token>" \
  -d '{
  "query": "mutation AddVirtualCardAddress($input: AddVirtualCardAddressInput!) { addVirtualCardAddress(input: $input) { userAddressId streetAddressLine1 streetAddressLine2 country city state postalCode } }",
  "variables": {
    "input": {
      "authUserId": "8b2c1e0a-7d4f-4a9b-9c2d-1f3e4a5b6c7d",
      "billingAddress": {
        "streetAddressLine1": "456 Market St",
        "streetAddressLine2": "Suite 200",
        "country": "United States",
        "city": "San Francisco",
        "state": "CA",
        "postalCode": "94105"
      }
    }
  }
}'

Step 4: Create the virtual card for the authorized user with the saved address.

curl -X POST https://transactional-graph.staging.fluzapp.com/api/v1/graphql \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer <account_owner_access_token>" \
  -d '{
  "query": "mutation CreateVirtualCard($input: CreateVirtualCardInput!) { createVirtualCard(input: $input) { virtualCardId userId cardholderName virtualCardLast4 status cardType initialAmount usedAmount createdAt } }",
  "variables": {
    "input": {
      "idempotencyKey": "931e8841-cf23-4f36-8bf8-169384042ec2",
      "offerId": "09a9c8d1-9c4b-46fa-8a7a-508812a2a0d9",
      "authUserId": "8b2c1e0a-7d4f-4a9b-9c2d-1f3e4a5b6c7d",
      "userAddressId": "1f6b2c3d-4e5f-4a67-9a10-2b3c4d5e6f70",
      "spendLimit": 100,
      "spendLimitDuration": "LIFETIME",
      "cardNickname": "Ada Travel Card",
      "primaryFundingSource": "FLUZ_BALANCE"
    }
  }
}'

Error Codes

Code	Message	Description
`ARG-0001`	Invalid arguments received	Required input is missing or invalid, `spendLimit` is below `$5`, `lockDate` is not in the future, `offerId` is invalid, `authUserId` is invalid, `userAddressId` does not belong to the account/cardholder, or `BANK_ACCOUNT` funding was selected without `bankAccountId`.
`AUTH-0008`	Invalid user access	The Bearer token could not be resolved to a caller. Verify the token is valid.
`AUTH-0031`	The requested scopes must be granted by the user first.	The token is missing the `CREATE_VIRTUALCARD` scope required to create virtual cards.
`AUTH-0034`	No authorized user found with this id on the caller’s account.	The `authUserId` does not exist on the caller’s account, is not ACTIVE, or refers to an OWNER assignment.
`VC-0001`	Please try another payment method. If you continue experiencing issues, please contact our support team.	The card could not be created or the issuer rejected the billing address.
`VC-0019`	We are unable to get the virtual card offer. If you continue experiencing issues, please contact our support team.	The requested virtual card offer could not be resolved.
`VC-0020`	Virtual card billing address is pending approval. Please retry shortly using the returned addressId.	The billing address was submitted to the issuer but was not approved before the server-side wait window ended. Retry using `extensions.addressId` as `userAddressId`.

​Parameters

​Response

​Success Response

​Response Fields

​Example Requests

​Full Flow: Register User, Add Authorized User, Add Address, Create Card

​Error Codes