# Status Codes

HTTP response codes returned by the Emailable API.

```json
{
  "message": "API key is required"
}
```

The Emailable API uses the following status codes:


Code   | Response               | Meaning
------ | ---------------------- | -------
`249`  | Try Again              | Your request is taking longer than normal. Please send your request again.
`400`  | Bad Request            | Your request is structured incorrectly.
`401`  | Unauthorized           | You did not send an API key.
`402`  | Payment Required       | You don't have enough credits to complete this request.
`403`  | Forbidden              | Your API key is invalid, you did not provide the required authentication parameters, you provided a `captcha_response` that failed to verify, or your request failed to authenticate.
`404`  | Not Found              | The specified resource does not exist.
`429`  | Too Many Requests      | You're requesting an endpoint too often.
`500`  | Internal Server Error  | A server error occurred. Please try again later, or contact support if you're having trouble.
`503`  | Service Unavailable    | We're temporarily offline for maintenance. Please try again later.