# Fields

> Document request parameters and response fields

Use one of `query`, `path`, `body`, or `header` as the name of a request parameter.

## Usage

```mdx
<ParamField query="limit" type="number" default="20">
  Maximum results to return.
</ParamField>

<ResponseField name="items" type="object[]" required>
  The returned items.
</ResponseField>
```

Both components accept `type`, `required`, `deprecated`, and `default`.

## Example

<ParamField query="limit" type="number" default="20">
  Maximum results to return.
</ParamField>

<ResponseField name="items" type="object[]" required>
  The returned items.
</ResponseField>