> ## 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. # DecisionsURLCitationAnnotation A web source the provider used for this request. Applies to the whole request, not to a specific answer. ## Fields | Field | Type | Required | Description | | - | - | - | - | | `type` | [components.DecisionsURLCitationAnnotationType](../components/decisionsurlcitationannotationtype.mdx) | ✔️ | N/A | | `url_citation` | [components.DecisionsURLCitationAnnotationURLCitation](../components/decisionsurlcitationannotationurlcitation.mdx) | ✔️ | N/A |