{"command":{"effect":"write","timeoutSeconds":30,"inputSchema":{"type":"object","description":"Create a new item relationship for the given category ID.<br><br>*Rate limits*:<br>Burst: `75/s`<br>Steady: `750/m`\n\n**Scopes:**\n`catalogs:write`\n\n[OpenAPI Spec](https://raw.githubusercontent.com/klaviyo/openapi/main/openapi/stable/apis/add_items_to_catalog_category.json)","properties":{"path":{"type":"object","properties":{"id":{"description":"The catalog category ID is a compound ID (string), with format: `{integration}:::{catalog}:::{external_id}`. Currently, the only supported integration type is `$custom`, and the only supported catalog is `$default`.","type":"string","examples":["$custom:::$default:::SAMPLE-DATA-CATEGORY-APPAREL"]}},"required":["id"],"additionalProperties":false},"headers":{"type":"object","properties":{"revision":{"type":"string","default":"2026-10-15","enum":["2026-10-15"],"description":"API endpoint revision (format: YYYY-MM-DD[.suffix])"}},"required":["revision"],"additionalProperties":false},"body":{"$ref":"#/definitions/CatalogCategoryItemOp"}},"required":["path","headers","body"],"additionalProperties":false,"definitions":{"CatalogCategoryItemOp":{"type":"object","properties":{"data":{"type":"array","items":{"type":"object","required":["type","id"],"properties":{"type":{"$ref":"#/definitions/CatalogItemEnum"},"id":{"description":"A list of catalog item IDs that are in the given category.","type":"string","examples":["$custom:::$default:::SAMPLE-DATA-ITEM-1"]}}}}},"required":["data"]},"CatalogItemEnum":{"type":"string","enum":["catalog-item"]}}},"name":"Add Items to Catalog Category","id":"klaviyo.add_items_to_catalog_category","example":{"path":{"id":"$custom:::$default:::SAMPLE-DATA-CATEGORY-APPAREL"},"headers":{"revision":"2026-10-15"},"body":{"data":[]}},"maxRequests":1,"summary":false}}