# API status codes | Orion Data API v1.3

> For the complete documentation index, see [llms.txt](https://docs.oriondata.io/llms.txt)

HTTP status codes returned by the Orion Data API and what each one means.

The Orion Data API uses standard HTTP status codes to indicate the outcome of a request.

## Response codes

| Code  | Name              | Meaning                                                                                                                                                                                    |
| ----- | ----------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| `200` | OK                | The request was successful.                                                                                                                                                                |
| `400` | Bad Request       | The server could not understand the request. Check required parameters and formats.                                                                                                        |
| `401` | Unauthorized      | No valid bearer token was supplied. See [Authenticate API requests](https://docs.oriondata.io/api/orion-data/v1-3/guides/authentication/).                                                 |
| `404` | Not Found         | The resource could not be found, or the endpoint has been retired after deprecation. See [API versions and deprecation](https://docs.oriondata.io/api/orion-data/v1-3/guides/versioning/). |
| `429` | Too Many Requests | You have exceeded the [rate limit](https://docs.oriondata.io/api/orion-data/v1-3/guides/rate-limiting/) for your plan. Back off and retry.                                                 |