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

# Send an OTP Code for Customer Verification

> Send an OTP code to a customer's contact information.

Send a one-time password (OTP) to a customer's registered email address or phone number as part of contact verification during the KYC flow. After the code is sent, prompt the customer to enter it and then call the [Verify OTP Code](/api-reference/enhanced-due-diligence/verify-verification-code) endpoint to confirm the contact detail. OTP codes expire at the time indicated by `expiresAt` in the response — if the code has expired before the customer submits it, call this endpoint again to send a new one.


## OpenAPI

````yaml openapi/spherepay.yaml POST /v2/customer/{id}/otp-send
openapi: 3.0.0
info:
  title: ''
  description: ''
  version: 1.0.0
  contact: {}
servers:
  - url: https://api.spherepay.co
    description: Production
security:
  - bearer: []
tags: []
paths:
  /v2/customer/{id}/otp-send:
    post:
      summary: Send Verification Code
      description: Send an OTP code to a customer's contact information.
      parameters:
        - name: id
          required: true
          in: path
          description: Customer ID
          schema:
            example: customer_f31121c389624d3697cbf3ea8830b7a4
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SendCustomerVerificationCodeDto'
      responses:
        '200':
          description: ''
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SendVerificationCodeResponseDto'
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProblemDetailsDto'
              examples:
                Bad Request:
                  summary: Bad Request
                  value:
                    status: 400
                    detail: Invalid request parameters
                    code: address/invalid
                    correlationId: 28c61e885c6e5eaa78c1a2183a9b883c
        '404':
          description: Not Found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProblemDetailsDto'
              examples:
                Not Found:
                  summary: Not Found
                  value:
                    status: 404
                    detail: Resource not found
                    code: resource/not-found
                    correlationId: 28c61e885c6e5eaa78c1a2183a9b883c
        '422':
          description: Unprocessable Entity - Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProblemDetailsDto'
              examples:
                Validation Error:
                  summary: Validation Error
                  value:
                    status: 422
                    detail: Validation failed
                    code: validation/failed
                    correlationId: 28c61e885c6e5eaa78c1a2183a9b883c
                    errors:
                      - detail: Invalid email format
                        pointer: /email
                      - detail: Name is required
                        pointer: /name
components:
  schemas:
    SendCustomerVerificationCodeDto:
      type: object
      properties:
        type:
          description: Type of verification code to send
          example: email
          type: string
          enum:
            - phone
            - email
      required:
        - type
    SendVerificationCodeResponseDto:
      type: object
      properties:
        customerId:
          description: Customer ID
          example: customer_f31121c389624d3697cbf3ea8830b7a4
          type: string
        expiresAt:
          description: ISO 8601 formatted date and time of the verification code expiration
          example: '2026-03-09T20:46:31.305Z'
          type: string
      required:
        - customerId
        - expiresAt
    ProblemDetailsDto:
      type: object
      properties:
        title:
          type: string
        status:
          type: integer
        detail:
          type: string
        code:
          type: string
        errors:
          type: array
          items:
            type: object
            properties:
              detail:
                type: string
              pointer:
                type: string
              parameter:
                type: string
              header:
                type: string
            required:
              - detail
        correlationId:
          type: string
      required:
        - status
        - detail
  securitySchemes:
    bearer:
      scheme: bearer
      bearerFormat: JWT
      type: http

````