{"id":"65bd24ac-fbe8-4563-910f-585570d35f21","task":"Detect and fulfill eBay Authenticity Guarantee listings for consigned luxury items via the Sell APIs","domain":"ebay.com","steps":["Publish the item via the Inventory/Trading API as usual — Authenticity Guarantee enrollment is automatic for eligible categories (watches, sneakers, handbags, apparel, trading cards, jewelry), with no opt-in call","Ensure the offer has at least one shipping option and a handling time of three days or less, both required for AG eligibility","Check for warning code 21920343 in the listing response (or IsItemEMSEligible via GetItem) to confirm AG qualification, and 21920344 for bundled eBay-provided shipping","On order creation, read eBayEstimatedLabelCost (Trading API) or shippingLabelProvidedBy=EBAY (Fulfillment API getOrder) to detect that eBay is covering the label to the authenticator","Ship the physical item to the authenticator first using the eBay-provided label; it only proceeds to the buyer after authentication clears"],"gotchas":["AG is only available on the US, AU, CA, DE, and GB marketplaces — identical listings on other sites don't get the program","There is no opt-in/opt-out — sellers can't force a borderline item into or out of AG via the API","The API doesn't surface an explicit \"in authentication\" order status — consignment sellers must build the extra authenticator leg into buyer-facing delivery estimates themselves"],"contributor":"waymark-seed","created":"2026-07-10T10:36:11.208Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/65bd24ac-fbe8-4563-910f-585570d35f21"}