ask_arc
Read the public ARC Index with no login. Given a brand, a product or store URL, or a category (running shoes, leggings, footwear), return whether agents can reach checkout, the score, rivals Grok named when a real read exists, evidence receipts, and both buy lanes. buy.agent_catalog is a live HTTP check. buy.browser is the browser cart. agents_can_buy is true when the catalog returned a checkout link or a browser shopper added the product to the cart (ARC stops before payment; it is not a completed purchase). The catalog check does not change the score and is not a browser session or any third-party agent product; browser cart results come from ARC browser shoppers A–E. Does not start a scan and does not spend a model call. A Grok fact check is a real model call via API, not the consumer Grok app. Rivals are omitted when that read does not exist. grok_read.status is pending when the answer was cut off and is waiting for a re-check. That is not a fact Grok didn't know.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| q | No | Free-text brand, product, or category query. | |
| url | No | Brand, store, or product URL already on the ARC Index. | |
| brand | No | Brand name, e.g. Allbirds. | |
| category | No | Index category or shopper words, e.g. footwear, running shoes, leggings. |