<ul>
<li>200 Everything is ok.</li>
<li>400 Valid data was given but the request has failed.</li>
<li>401 Unauthorized, No valid user API Key was given.</li>
<li>403 Forbidden, Client app does not have access.</li>
<li>404 The request resource could not be found.</li>
<li>422 The payload has missing required parameters or invalid data was given.</li>
<li>429 Too many attempts.</li>
<li>500 Request failed due to an internal error.</li>
<li>503 Offline for maintenance.</li>
</ul>

- **200** 	Everything is ok.
- **400** 	Valid data was given but the request has failed.
- **401** 	Unauthorized, No valid user API Key was given.
- **403**    Forbidden, Client app does not have access.
- **404** 	The request resource could not be found.
- **422** 	The payload has missing required parameters or invalid data was given.
- **429** 	Too many attempts.
- **500** 	Request failed due to an internal error.
- **503** 	Offline for maintenance.

A small list of HTTP response status codes that could be used for APIs.

HTTP Response Codes to use for API

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