> ## 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.

# Request

## Fields

| Field       | Type              | Required             | Description                               |
| ----------- | ----------------- | -------------------- | ----------------------------------------- |
| `body`      | Dict\[str, *Any*] | :heavy\_check\_mark: | Request payload for the batch `endpoint`. |
| `custom_id` | *str*             | :heavy\_check\_mark: | N/A                                       |