---
updatedAt: 2025-11-11T00:09:26.000Z
agentTools:
  projectIndex: https://docs.interswitchgroup.com/v1.1/llms.txt
---

# HTTP Status codes & descriptions

Interswitch APIs follow standard HTTP response codes for successful or failed transactions.

| Error                | Description                                                                                                                                                                                                                                   |
| -------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| 200, 201, or 202     | This means the request was successful, and the action has been carried out. Also note that you will receive a `200`, `201`, or `202` status code.                                                                                             |
| 400                  | A validation error occurred, and the request was not completed. This means a parameter to complete this request is unavailable or invalid in the request payload.                                                                             |
| 401                  | This can be triggered by passing an invalid secret key in the authorization header or in a scenario where there is none. The request will not be authorized as your request does not fulfill the basic requirement for a successful API call. |
| 404                  | This means your request could not be fulfilled as the resource/institution requested does not exist.                                                                                                                                          |
| 500, 501,502,503,504 | This request could not be completed due to an error at Interswitch's end. Please report if you encounter any instance of this kind.                                                                                                           |