> ## 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.

# ResultError

## Fields

| Field | Type | Required | Description | Example |
| - | - | - | - | - |
| `error_type` | [Optional\[components.APIErrorType\]](../components/apierrortype.mdx) | ➖ | Canonical OpenRouter error type, stable across all API formats | rate\_limit\_exceeded |
| `message` | *str* | ✔️ | N/A | |
| `param` | *Nullable\[str]* | ✔️ | N/A | |
| `type` | *str* | ✔️ | N/A | |