---
title: "Validate Card for Pre-Login"
method: POST
path: "/programs/{programCode}/getpreloginvalidation"
tags: ["PaymentInstrument"]
---

# Validate Card for Pre-Login

`POST /programs/{programCode}/getpreloginvalidation`

Validate Card CVV

## Path parameters

- `programCode` string, required

## Headers

- `X-GD-RequestId` string, required

## Request body

- GetPreloginValidationRequest — Represents a request to perform pre-login validation using encrypted data.
  - `encryptedPrivatePreloginValidationData` EncryptedData — Represents a container for encrypted data used in secure data transfer operations. Contains the encrypted payload and associated cryptographic metadata, including encryption version, ephemeral public key, and public key hash. Used to securely transmit sensitive information such as user data, ensuring confidentiality and integrity during transport.
    - `version` string, nullable — The version of the encryption algorithm used to encrypt the data (e.g., "v1", "v2").
    - `ephemeralPublicKey` string, nullable — The ephemeral public key used in the encryption process, typically for key exchange or session establishment.
    - `publicKeyHash` string, nullable — The hash of the public key used to verify the integrity and authenticity of the encryption key.
    - `data` string, nullable — The encrypted data payload, typically base64-encoded, containing the sensitive information.

## Response `200`

OK

- GetPreloginValidationResponse — Represents the response for a pre-login validation check on a payment instrument or account.
  - `isValid` boolean — Indicates whether the pre-login validation was successful.
  - `inValidReason` string, nullable — The reason for validation failure, if the validation was not successful.
  - `accountIdentifier` string, nullable — The unique identifier for the account associated with the validation check.
  - `paymentInstrumentIdentifier` string, nullable — The unique identifier for the payment instrument (e.g., card) associated with the validation check.
  - `responseDetails` ResponseDetail[], nullable — Required: A list of response details providing status codes, descriptions, and additional information about the result of the operation.
    - `code` integer — The primary status or error code for the response (e.g., 200 for success, 400 for validation error).
    - `subCode` integer, nullable — An optional subcode providing more granular detail about the response or error.
    - `description` string, nullable — A human-readable description of the response, error, or status.
    - `url` string, nullable — A URL linking to documentation or a web page with more information about the response code.

## Other responses

- `401` — Unauthorized
- `403` — Forbidden
- `500` — Internal Server Error
- `503` — Service Unavailable

---

[API](https://skmtc.net/greendot/apis/baas-apis.md) · [All operations](https://skmtc.net/greendot/apis/baas-apis/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/greendot/baas-apis/revisions/666553766b78/schema)