> For the complete documentation index, see [llms.txt](https://docs.taxsplit.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.taxsplit.app/api-reference/readme/error-handling.md).

# Error handling

All errors follow a consistent format for easy handling.

### Error response format

```json
{
  "error": "Error message",
  "details": []
}
```

* `details` is optional and typically used for validation errors.

### HTTP status codes

* `200` Success
* `400` Bad Request (validation error)
* `401` Unauthorized (missing/invalid JWT)
* `403` Forbidden (not allowed)
* `404` Not Found
* `429` Too Many Requests (rate limit exceeded)
* `500` Internal Server Error

### Example errors

#### Validation error

```json
{
  "error": "Validation error",
  "details": [
    {
      "path": ["name"],
      "message": "String must contain at least 1 character(s)"
    }
  ]
}
```

#### Authentication error

```json
{
  "error": "Unauthorized",
  "message": "Invalid or expired token"
}
```

#### Not found

```json
{
  "error": "Token not found"
}
```


---

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