> ## Documentation Index
> Fetch the complete documentation index at: https://developers.stellar.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Standard Status Codes

> These responses are Internet protocol codes that describe basic issues with a submitted transaction.

These responses are Internet protocol codes that describe basic issues with a submitted transaction.

**OK** `200`

The request has succeeded.

**Bad Request** `400`

The request as invalid in some way.

**Not Found** `404`

The requested resource does not exist.

**Not Implemented** `404`

The request does not have an acceptable response content-type.

**Not Acceptable** `406`

The request does not have an acceptable response content-type.

**Internal Server Error** `500`

Something went wrong on the Horizon server’s end.

```json Example Response for a Bad Request Status Code theme={"theme":{"light":"github-light","dark":"github-dark"}}
{
  "type": "https://stellar.org/horizon-errors/bad_request",
  "title": "Bad Request",
  "status": 400,
  "detail": "The request you sent was invalid in some way",
  "extras": {
    "invalid_field": "limit",
    "reason": "unparseable value"
  }
}
```