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

# APIErrorType

Canonical OpenRouter error type, stable across all API formats

## Example Usage

```python theme={null}
from openrouter.components import APIErrorType

# Open enum: unrecognized values are captured as UnrecognizedStr
value: APIErrorType = "context_length_exceeded"
```

## Values

This is an open enum. Unrecognized values will not fail type checks.

* `"context_length_exceeded"`
* `"max_tokens_exceeded"`
* `"token_limit_exceeded"`
* `"string_too_long"`
* `"authentication"`
* `"permission_denied"`
* `"payment_required"`
* `"rate_limit_exceeded"`
* `"provider_overloaded"`
* `"provider_unavailable"`
* `"invalid_request"`
* `"invalid_prompt"`
* `"not_found"`
* `"precondition_failed"`
* `"payload_too_large"`
* `"unprocessable"`
* `"content_policy_violation"`
* `"refusal"`
* `"invalid_image"`
* `"image_too_large"`
* `"image_too_small"`
* `"unsupported_image_format"`
* `"image_not_found"`
* `"image_download_failed"`
* `"server"`
* `"timeout"`
* `"unmapped"`