Options for the web fetch tool.
interface WebFetch20250910OptionsIf provided, only these domains will be fetched. Cannot be used
alongside blockedDomains.
If provided, these domains will never be fetched. Cannot be used
alongside allowedDomains.
Create a cache control breakpoint at this content block.
Enable citations for fetched content. Unlike web search where citations are always enabled, citations are optional for web fetch.
Maximum content length in tokens. If the fetched content exceeds this limit, it will be truncated. This helps control token usage when fetching large documents.
Maximum number of times the tool can be used in the API request.