> ## 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) | :heavy\_minus\_sign: | Canonical OpenRouter error type, stable across all API formats | rate\_limit\_exceeded |
| `message`    | *str*                                                                 | :heavy\_check\_mark: | N/A                                                            |                       |
| `param`      | *Nullable\[str]*                                                      | :heavy\_check\_mark: | N/A                                                            |                       |
| `type`       | *str*                                                                 | :heavy\_check\_mark: | N/A                                                            |                       |