> ## Documentation Index
> Fetch the complete documentation index at: https://studio.assembly.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Errors

> HTTP status codes the API returns and the shape of the error response object

Assembly follows conventional HTTP response codes to indicate the success or failure of an API request and uses the following codes:

| Error Code | Meaning                                                                                                          |
| ---------- | ---------------------------------------------------------------------------------------------------------------- |
| 200        | OK — Everything worked as expected.                                                                              |
| 400        | Bad Request — The request was unacceptable, typically due to an invalid or missing parameter.                    |
| 401        | Unauthorized — No valid API key provided.                                                                        |
| 404        | Not Found — The requested resource doesn't exist.                                                                |
| 429        | Too Many Requests — Too many requests hit the API too quickly.                                                   |
| 500        | Internal Server Error — There was an error with Assembly's servers. Try again later or contact Assembly support. |

## Error response

Some errors that could be handled programmatically (e.g., a parameter is invalid) include an error response object that explains the error reported.

**code** `string`
Specialized identifier for this type of error in our API. Mostly returned with `4xx` errors and briefly explains the error reported.

**message** `string`
Human readable error message describing the issue.

**data** `string or object`
Additional information provided about an error for `5xx` response status.