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

# Mock KYC Status [Sandbox Only]

> Sandbox only. Simulates KYC status changes so you can test your KYC flow.

<Prompt description="Mock KYC Status" actions={["cursor"]}>
  Add the Zapyd "Mock KYC Status" call (`PATCH /cms/api/v1/kyc/mock-kyc-status`) to my backend. Sandbox only. Simulates KYC status changes so you can test your KYC flow.

  * Sandbox: `PATCH https://sandbox.zapyd.com/cms/api/v1/kyc/mock-kyc-status`
  * Production: none, sandbox only

  JSON body:

  * `customer_id` (string, uuid, required): Zapyd customer ID (UUID) returned by Create Customer.
  * `kyc_status` (string, required): KYC result to set. The FAILED values map to the failure\_reason you get back. One of: `VERIFIED`, `UNVERIFIED`, `DOCUMENT_VERIFICATION_FAILED`, `TAX_VERIFICATION_FAILED`, `ADDITIONAL_INFO_VERIFICATION_FAILED`.
  * `is_edd_required_payin` (boolean, optional): Set to true to make payin limits require EDD for this customer. Example: `false`.
  * `is_edd_required_payout` (boolean, optional): Set to true to make payout limits require EDD for this customer. Example: `false`.

  Success: HTTP 200, `{status: true, message, data}`. `data`: `id`, `status`, `failure_reason` (KYC failure reason when status is FAILED, otherwise null).
  Every endpoint can also return 401 `AUTH_*` (signature, timestamp or key: fix, don't retry), and 429 or 5xx (retry with backoff).

  Rules:

  * Sandbox only: it doesn't exist in production. Keep it behind a sandbox-only flag or in test code.
  * Sends the same `CUSTOMER` webhook production would. The customer needs KYC data first (`POST /kyc/add-kyc-data`), except USA customers.
  * Allowed moves: `PROCESSING` to any value; `VERIFIED` or `FAILED` only back to `UNVERIFIED`; nothing from `UNVERIFIED`.
  * Set `is_edd_required_payin` or `is_edd_required_payout` to test the EDD branch of your limit checks.

  Signing (every request):

  * Headers: `X-API-KEY`, `X-TIMESTAMP` (Unix seconds, within 300 s of server time; generate per request) and `X-SIGNATURE`.
  * `X-SIGNATURE` = Base64(HMAC-SHA256(key = API secret, message = apiKey + "|" + timestamp + "|" + canonicalBody)). Base64 of the raw digest, not hex.
  * canonicalBody: the JSON body with keys sorted at every nesting level, no whitespace (separators `,` and `:`), and every non-ASCII character escaped as lowercase `\uXXXX` (Python `json.dumps(body, sort_keys=True, separators=(",", ":"))`). Requests with no body (GET, DELETE) sign `{}`. Query parameters are not signed.
  * Send the exact canonicalBody string you signed as the request body, with `Content-Type: application/json`.
  * Test vector: key `3f1b2c4d-5e6f-4a7b-8c9d-0e1f2a3b4c5d`, secret `test-secret-do-not-use`, timestamp `1735689600`. Signing `{}` gives `6sCtVSRQjU9+2/af8gdwUAvY1l6Ii6ENcbRfanPkhY0=`. Body `{"customer_id":"78c99d71-f28f-47a9-8302-93b286efbe0e","amount":100.5,"currency":"INR","meta":{"note":"Café","b":2,"a":1}}` gives `l+DvQrzlKbsOSxSYOdWoWHEehcFRZfDJPKlLDkm2cSI=`.

  Deliver:

  1. A typed `mockKycStatus` function in this codebase's language and HTTP client. Reuse an existing Zapyd client and signer, or write one small shared client.
  2. Config from `ZAPYD_API_KEY`, `ZAPYD_API_SECRET` and `ZAPYD_BASE_URL`. The secret stays on the server, never in a browser or app.
  3. Return `data`. When `status` is false, throw an error with the HTTP status, `err_code`, `message` and `errors`. Don't show raw errors to end users.
  4. Retry only 429 and 5xx: exponential backoff from 1 s, capped at 30 s, at most 5 attempts.
  5. Amounts as strings. Types for every field above.
  6. Tests: the signer against the test vector, and this call against sandbox.

  Reference: `https://docs.zapyd.com/api-reference-exchange/endpoint/kyc/mock-kyc-status.md`
</Prompt>

<Note>
  This endpoint is available only in the **Sandbox environment** and allows you to simulate KYC status changes for testing purposes.

  This endpoint follows specific state transition rules:

  * If current status is **UNVERIFIED**: No status changes are allowed
  * If current status is **FAILED** or **VERIFIED**: Can only be changed to **UNVERIFIED**
  * If current status is **PROCESSING**: Can be changed to **TAX\_VERIFICATION\_FAILED**, **DOCUMENT\_VERIFICATION\_FAILED**, **VERIFIED**, or **UNVERIFIED**

  Attempting to change the status outside of these allowed transitions will result in an error.
</Note>


## OpenAPI

````yaml PATCH /kyc/mock-kyc-status
openapi: 3.1.0
info:
  title: Zapyd API
  description: API for Zapyd - Customer, Payout, and Webhook services
  license:
    name: MIT
  version: 1.0.0
servers:
  - url: https://sandbox.zapyd.com/pos/api/v1
    description: Payout API Base URL
    variables:
      base_url:
        default: https://sandbox.zapyd.com
  - url: https://sandbox.zapyd.com/cms/api/v1
    description: Customer API Base URL
    variables:
      base_url:
        default: https://sandbox.zapyd.com
security:
  - ApiKeyAuth: []
    TimestampAuth: []
    SignatureAuth: []
tags:
  - name: Customer
    description: Customer related operations
    x-displayName: Customer
    x-traitTag: true
  - name: Payout
    description: Payout related operations
  - name: Webhooks
    description: Webhook related operations
  - name: Widget
    description: Hosted buy/sell widget session initialization
paths:
  /kyc/mock-kyc-status:
    patch:
      tags:
        - KYC
      description: >-
        Sandbox only. Sets a customer's KYC result and sends the CUSTOMER
        webhook. The customer must already have KYC data (add-kyc-data), except
        USA customers. A VERIFIED or FAILED customer can only be set back to
        UNVERIFIED.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - customer_id
                - kyc_status
              properties:
                customer_id:
                  type: string
                  format: uuid
                  example: 4e6f1b20-a73c-11ec-b909-0242ac120002
                  description: Zapyd customer ID (UUID) returned by Create Customer.
                kyc_status:
                  type: string
                  example: VERIFIED
                  description: >-
                    KYC result to set. The FAILED values map to the
                    failure_reason you get back.
                  enum:
                    - VERIFIED
                    - UNVERIFIED
                    - DOCUMENT_VERIFICATION_FAILED
                    - TAX_VERIFICATION_FAILED
                    - ADDITIONAL_INFO_VERIFICATION_FAILED
                is_edd_required_payin:
                  type: boolean
                  description: >-
                    Optional. Set to true to make payin limits require EDD for
                    this customer.
                  example: false
                is_edd_required_payout:
                  type: boolean
                  description: >-
                    Optional. Set to true to make payout limits require EDD for
                    this customer.
                  example: false
      responses:
        '200':
          description: KYC Status updated successfully
          content:
            application/json:
              schema:
                type: object
                properties:
                  status:
                    type: boolean
                    example: true
                  message:
                    type: string
                    example: Success
                  data:
                    type: object
                    properties:
                      id:
                        type: string
                        format: uuid
                        example: 550e8400-e29b-41d4-a716-446655440000
                      status:
                        type: string
                        example: VERIFIED
                      failure_reason:
                        type:
                          - string
                          - 'null'
                        description: >-
                          KYC failure reason when status is FAILED, otherwise
                          null.
                        example: null
        '500':
          description: Internal Server Error
          content:
            application/json:
              schema:
                type: object
                properties:
                  status:
                    type: boolean
                    example: false
                  message:
                    type: string
                    example: Internal Server Error
                  data:
                    type: 'null'
                  err_code:
                    type: string
                    example: SYS_INTERNAL_ERROR
                  errors:
                    type: string
                    example: Unexpected error occurred. Please try again later.
      servers:
        - url: https://sandbox.zapyd.com/cms/api/v1
          description: KYC API Base URL
components:
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-API-KEY
      description: API Key for authentication
    TimestampAuth:
      type: apiKey
      in: header
      name: X-TIMESTAMP
      description: Current timestamp in seconds since epoch
    SignatureAuth:
      type: apiKey
      in: header
      name: X-SIGNATURE
      description: HMAC SHA256 signature of the request encoded in Base64

````

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