# Get customer payment token information

Retrieves payment method token information for a specific customer. This endpoint returns the customer's stored payment tokens used for recurring subscription billing.

Key Information Returned:
- Customer ID: Shopify customer identifier
- Payment Tokens: List of stored payment method tokens
- Payment Method Details: Last 4 digits, card type, expiration
- Default Payment Method: Primary payment method for subscriptions
- Token Status: Active, expired, or failed payment methods
- Payment Gateway: Stripe, Shopify Payments, etc.

Payment Token Information:
- Token ID: Unique identifier for the payment method
- Card Brand: Visa, Mastercard, Amex, etc.
- Last 4 Digits: Masked card number ending
- Expiry Date: Card expiration month and year
- Billing Address: Associated billing address details
- Created Date: When payment method was added

Use Cases:
- Display saved payment methods in customer portal
- Validate payment method availability before billing
- Allow customers to select from existing payment methods
- Sync payment data with external CRM or billing systems
- Build custom payment management interfaces
- Trigger payment update reminders for expiring cards

Security Note: This endpoint only returns tokenized payment information. Full card numbers are never exposed via the API.

Authentication: Requires API key authentication via X-API-Key header or api_key parameter

Endpoint: GET /api/external/v2/customer-payments/token/{customerId}
Version: 0.0.1

## Path parameters:

  - `customerId` (integer, required)
    Shopify customer ID
    Example: 123456789

## Query parameters:

  - `api_key` (string)
    API Key (Deprecated - Use Header X-API-Key instead)

## Header parameters:

  - `X-API-Key` (string)
    API Key for authentication (Preferred method - use this instead of api_key parameter)

## Response 200 fields (application/json):

  - `customerId` (integer)

  - `token` (string)

## Response 401 fields (*/*):

  - `customerId` (integer)

  - `token` (string)

## Response 403 fields (*/*):

  - `customerId` (integer)

  - `token` (string)

## Response 404 fields (*/*):

  - `customerId` (integer)

  - `token` (string)