> ## Documentation Index
> Fetch the complete documentation index at: https://docs.endl.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Get a cardholder

> One cardholder.



## OpenAPI

````yaml api-reference/endl-cards-api.json GET /api/v0/customer/{businessId}/card-users/{cardholderId}
openapi: 3.1.0
info:
  title: Endl Cards API
  version: '0'
  description: >-
    Issue virtual cards to your customers: enrol the customer, fund the card
    balance, issue cards, show card details securely, and follow every
    transaction by webhook.


    Paths are under `/api/v0`. The key must carry the **`cards`** permission.
    **This API is not final yet** — see [what may still
    change](/api-reference/cards/introduction#not-final-yet).
servers:
  - url: https://api-sandbox.endl.io
    description: Sandbox
security:
  - apiKey: []
tags:
  - name: Enrolment
  - name: Cardholders
  - name: Cards
  - name: Card details
  - name: Transactions and balance
  - name: Deposits
  - name: Withdrawals
paths:
  /api/v0/customer/{businessId}/card-users/{cardholderId}:
    get:
      tags:
        - Cardholders
      summary: Get a cardholder
      description: One cardholder.
      parameters:
        - $ref: '#/components/parameters/ApiVersion'
        - $ref: '#/components/parameters/BusinessId'
        - $ref: '#/components/parameters/CardholderId'
      responses:
        '200':
          description: The cardholder.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Cardholder'
              example:
                cardholderId: cus_8Qw2...
                businessId: cus_1Xb7...
                firstName: Ada
                lastName: Lovelace
                email: ada@example.com
                status: pending
        '401':
          description: Missing or invalid API key.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '403':
          description: The API key lacks the `cards` permission.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: Customer or cardholder not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  parameters:
    ApiVersion:
      name: Api-Version
      in: header
      required: true
      description: >-
        The API version this request targets. `2026-09.1`. See
        [Versioning](/api-reference/versioning).
      schema:
        type: string
        pattern: ^\d{4}-\d{2}\.\d+$
        default: 2026-09.1
      example: 2026-09.1
    BusinessId:
      name: businessId
      in: path
      required: true
      description: A business (`cus_`).
      schema:
        type: string
        example: cus_1Xb7...
    CardholderId:
      name: cardholderId
      in: path
      required: true
      description: An individual or an employee (`cus_`).
      schema:
        type: string
        example: cus_8Qw2...
  schemas:
    Cardholder:
      type: object
      properties:
        cardholderId:
          type: string
          description: A `cus_` id.
          example: cus_8Qw2...
        businessId:
          type: string
          example: cus_1Xb7...
        firstName:
          type: string
        lastName:
          type: string
        email:
          type: string
        status:
          type: string
          enum:
            - pending
            - active
            - rejected
            - locked
            - canceled
          description: >-
            Cards can be issued once it is `active`. Changes arrive as
            `cardholder.updated`.
    Error:
      type: object
      description: >-
        The standard Endl error body. `errors[].code` is an `ERRCRD_` code —
        **the code numbers are not final yet** — and `field` names the request
        field when one is at fault.
      properties:
        code:
          type: integer
        message:
          type: string
        status:
          type: string
          enum:
            - ERROR
        data:
          type: 'null'
        errors:
          type: array
          items:
            type: object
            properties:
              code:
                type: string
              message:
                type: string
              field:
                type:
                  - string
                  - 'null'
  securitySchemes:
    apiKey:
      type: apiKey
      in: header
      name: Api-Key
      description: Partner API key. Must carry the `cards` permission.

````

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