---
description: The list items endpoint now accepts a key query parameter to return the item matching an exact object key.
title: Filter AI Search list items by exact object key
image: https://developers.cloudflare.com/changelog/post/2026-07-08-ai-search-list-items-key-filter/og.png?v=ba79439d2ec14042
---

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July 8, 2026

## Filter AI Search list items by exact object key

[AI Search](https://developers.cloudflare.com/ai-search/)

Copy as Markdown| [View as Markdown](https://developers.cloudflare.com/changelog/post/2026-07-08-ai-search-list-items-key-filter/index.md)| [Agent setup](https://developers.cloudflare.com/agent-setup/)

In [AI Search](https://developers.cloudflare.com/ai-search/), you can upload files to an instance, or connect a [data source](https://developers.cloudflare.com/ai-search/configuration/data-source/) such as an R2 bucket, to make your content searchable with natural language. Each file becomes an **item** identified by an object **key** (its filename or path). The [list items endpoint](https://developers.cloudflare.com/ai-search/api/items/rest-api/) returns the items in an instance.

That endpoint now accepts a `key` query parameter, so you can look up a single item by its exact object key without paging through the full list. This complements the existing `item_id` filter for when you know the key but not the ID.

```bash
curl "https://api.cloudflare.com/client/v4/accounts/<ACCOUNT_ID>/ai-search/instances/<INSTANCE_NAME>/items?key=docs/readme.md" \
  -H "Authorization: Bearer <API_TOKEN>"
```

Keys are unique per data source, so combine `key` with `source` (for example, `source=builtin`) to disambiguate when the same key exists across multiple sources.

For more information, refer to [managing items](https://developers.cloudflare.com/ai-search/api/items/rest-api/).

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```