D1 - AI Search supports D1 databases as a data source (beta)

AI Search can now use a D1 database as a data source. AI Search runs a read-only query that you provide and indexes each returned row as a separate document. Scheduled syncs keep the index current as rows are added, changed, or removed.

Create D1-backed instances from the dashboard, the REST API, or the Workers binding.

curl -X POST "https://api.cloudflare.com/client/v4/accounts/<ACCOUNT_ID>/ai-search/namespaces/default/instances" \
  -H "Authorization: Bearer <API_TOKEN>" \
  -H "Content-Type: application/json" \
  --data '{
    "id": "help-center",
    "type": "d1",
    "source": "<D1_DATABASE_ID>",
    "token_id": "<SERVICE_TOKEN_ID>",
    "source_params": {
      "d1": {
        "query": "SELECT article_id AS id, title, content, category AS meta_category\nFROM articles\nWHERE published = 1"
      }
    }
  }'

Learn more in D1 data source.