---
description: AI Search introduces new OpenAI-compatible API endpoints.
title: New AI Search REST API endpoints for /search and /chat/completions
image: https://developers.cloudflare.com/changelog/post/2026-03-23-ai-search-new-rest-api/og.png?v=517d6905013e4be7
---

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March 23, 2026

## New AI Search REST API endpoints for /search and /chat/completions

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

Copy as Markdown| [View as Markdown](https://developers.cloudflare.com/changelog/post/2026-03-23-ai-search-new-rest-api/index.md)| [Agent setup](https://developers.cloudflare.com/agent-setup/)

[AI Search](https://developers.cloudflare.com/ai-search/) now offers new [REST API](https://developers.cloudflare.com/ai-search/api/search/rest-api/) endpoints for search and chat that use an OpenAI compatible format. This means you can use the familiar `messages` array structure that works with existing OpenAI SDKs and tools. The messages array also lets you pass previous messages within a session, so the model can maintain context across multiple turns.

| Endpoint | Path |
| --- | --- |
| Chat Completions | `POST /accounts/{account_id}/ai-search/instances/{name}/chat/completions` |
| Search | `POST /accounts/{account_id}/ai-search/instances/{name}/search` |

Here is an example request to the Chat Completions endpoint using the new `messages` array format:

```bash
curl https://api.cloudflare.com/client/v4/accounts/{ACCOUNT_ID}/ai-search/instances/{NAME}/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer {API_TOKEN}" \
  -d '{
    "messages": [
      {
        "role": "system",
        "content": "You are a helpful documentation assistant."
      },
      {
        "role": "user",
        "content": "How do I get started?"
      }
    ]
  }'
```

For more details, refer to the [AI Search REST API guide](https://developers.cloudflare.com/ai-search/api/search/rest-api/).

#### Migration from existing AutoRAG API (recommended)

If you are using the previous AutoRAG API endpoints (`/autorag/rags/`), we recommend migrating to the new endpoints. The previous AutoRAG API endpoints will continue to be fully supported.

Refer to the [migration guide](https://developers.cloudflare.com/ai-search/api/migration/rest-api/) for step-by-step instructions.

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